File:T A Edison 1stPatent.jpg

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T_A_Edison_1stPatent.jpg ‎(500 × 456 pixels, file size: 120 KB, MIME type: image/jpeg)

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English: Thomas Elba Edison's first patented invention, an Electric Voting Machine.
湯馬士．艾爾巴．愛迪生第一件嘅專利發明品－－－電氣投票紀錄機。議員只要按檯上面嘅「贊成」或「反對」制，議長就可以睇到票決結果嘅數字。但冇實際用應到。
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current06:08, 28 November 2006Thumbnail for version as of 06:08, 28 November 2006500 × 456 (120 KB)And927~commonswiki (talk | contribs)'''湯馬士．艾爾巴．愛迪生'''第一件嘅專利發明品－－－'''電氣投票紀錄機'''。議員只要按檯上面嘅「贊成」或「反對」制，議長就可以睇到票決結果嘅數字。但冇實際用應到。

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