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Die große Enzyklopädie des mechanischen Rechnens

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Patente aus den USA 1907


 US842232 1907
 US842763 1907
 US843944 1907
 US844195 12.02.1907 E. McC. Scoville Planimeter
 US844505 1907
 US844536 1907
 US845276 1907
 US845463 1907
 US845753 1907
 US847904 1907
 US853543 14.05.1907 Felt & Tarrant Mfg. Co, Chicago Comptometer
 US856360 1907
 US858548 1907
 US859552 1907
 US861268 30.07.1907 G. Coradi Planimeter for leather
 US861303 1907
 US861541 1907
 US861861 1907
 US864455 1907
 US864770 1907
 US865808 1907
 US866298 1907
 US869241 1907
 US872021 1907
 US874107 17.12.1907 [Wales] Adding Machine Co., Philadelphia Adding Machine


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