American inventor Alexander Graham Bell with one of his inventions, ca. 1910. Bell engineered the first intelligible electronic transmission of voice...
engraving alexander graham bell making a call on antique telephone - 亞歷山大貝爾 幅插畫檔、美工圖案、卡通及圖標雕刻圖像, 電話, 發明家
Group of businessmen watch inventor Alexander Graham Bell as he opens the New York-Chicago telephone line.電話, 商務, 人群
In the centennial year of 1876, Alexander Graham Bell sent his first telephone message. Here he is 16 years later, surrounded by executives, making...電話
'Bell's telephone in operation', late 19th century. Scottish-born American inventor Bell filed the patent for his telephone at the United States...電話
Alexander Graham Bell at the New York end of the first long-distance telephone call to Chicago in 1892.電話
portrait of alexander graham bell, a scottish-born canadian-american inventor, scientist and engineer who is credited with patenting the first practical telephone - 亞歷山大貝爾 個照片及圖片檔電話, 數學
Alexander Graham Bell, Scots born American inventor who produced the first intelligible telephonic transmission and later formed the Bell Telephone...
Scottish inventor Alexander Graham Bell who invented the telephone. Bell, born in Edinburgh, worked with his father, Scottish educator Alexander...
American educator and inventor Alexander Graham Bell , who produced the first clear telephonic transmission of the human voice in 1875.彩色影像
Alexander Graham Bell Scottish-born American inventor: patented telephone 1876. Photograph of Bell as a young man.
Alexander Graham Bell makes the first telephone call from New York to Chicago in 1892. Bell invented the telephone sixteen years earlier in 1876.電話
"Watson, come here!" Alexander Graham Bell's first words spoken through this, his first telephone. Transmitter, left, and receiver. Undated...
Portrait of Alexander Graham Bell , inventor of the telephone. He stands outdoors, next to an elaborate kite.電話
portrait of alexander graham bell, a scottish-born canadian-american inventor, scientist and engineer who is credited with patenting the first practical telephone - 亞歷山大貝爾 個照片及圖片檔電話, 發明家
Alexander Graham Bell is the famous Scottish inventor of the telephone and established the Bell Telephone Company in 1877. He also found innovative...
Alexander Graham Bell Scottish-born American inventor: patented telephone 1876: Bell inaugurating 1520 km telephone link between New York and...電話
Alexander Graham Bell was born in Scotland but emigrated to the United States, settling in Boston where he began his career as an inventor. On 7...電話
Portrait of Alexander Graham Bell , inventor of the telephone. He wears headphones that are attached to a piece of electrical apparatus.電話
Scottish inventor Alexander Graham Bell demonstrating his telephone at the Lyceum Hall in Salem, Massachusetts, 15th March 1877.塞勒姆 - 馬薩諸塞州, 電話
Alexander Graham Bell , Scottish-born American inventor, 1892. Bell patented the telephone in 1876. Here he is inaugurating the 1520 km telephone...電話, 19世紀風格
antique illustration, physics principles and experiments, electricity and magnetism: bell's telephone - 亞歷山大貝爾 幅插畫檔、美工圖案、卡通及圖標電話, 古董, 插圖
Scottish scientist and inventor Alexander Graham Bell , circa 1920. Bell's best known inventions are the telephone and the metal detector.1920-1929
Alexander Graham Bell , Scottish-born American inventor, 1892. Bell patented the telephone in 1876. Here he is inaugurating the 1520 km telephone...電話, 歸檔, 插圖
Alexander Graham Bell a Scots-born American inventor who established the Bell Telephone Company. Bell, born in Edinburgh, worked with his father,...
Engraving depicting a Bell telephone, invented by Alexander Graham Bell. Alexander Graham Bell a Scottish-born scientist, inventor, engineer, and...電話
Alexander Graham Bell makes the first telephone call between New York and Chicago, USA, 1892. Scottish-born American inventor Alexander Graham Bell...電話
Alexander Graham Bell, Scottish-born American inventor, 19th century. Bell , who patented the telephone in 1876, as a young man. .
This box telephone, which was previously used at Lloyds signal station in Crookhaven, represents one of Alexander Graham Bell's earliest efforts to...電話
Alexander Graham Bell and assistant use an electrical detector to find a bullet in the torso of ailing US President James Garfield c1882, . In 1881,...
Alexander Graham Bell at the unveiling of a plaque commemorating his1876 invention of the telephone, Boston, Massachusetts, 1916.
Sketch of Alexander Graham Bell's telephone of 1876. Scottish-born American inventor Bell filed the patent for his telephone at the United States...電話
Inventor Alexander Graham Bell poses for a portrait with his wife Mabel Hubbard Gardiner Bell inside the framework of a tetrahedral kite in circa...太太
Writer Helen Keller and inventor of the telephone Alexander Graham Bell using the manual alphabet of the deaf and blind. Bell did extensive research...海倫凱勒, 電話, 手語
Alexander Graham Bell was an eminent Scottish-born scientist, inventor, engineer and innovator who is credited with inventing the first practical...
Alexander Graham Bell Scottish-born American inventor; patented telephone 1876. Photograph of Bell as a young man.
Portrait of Scottish-born American scientist and inventor Alexander Graham Bell , 1905. Bell was instrumental in the development of the telephone and...
Alexander Graham Bell , Scottish-born American inventor. Bell, who patented the telephone in 1876, as a young man.
Alexander Graham Bell Scottish-born American inventor: patented telephone 1876. Bell filing caveat for his telephone at United States Patent Office...
