Adding and Subtracting Machine: Searching Inside

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Sequence: 1 (standard view) | zoom view

... 1,361,949, D, WITTNEBERT. ADDING AND SUBTRACTING MACHINE. APPLICATION FILED SEPT.21, 1918.... Patented Dec. 14,1920. Z.9 Zg 77 7 / / 5 Gg 1 ~ 3 0 3 0 3 0 3 6IZ G 1l 5 51S zr Z -19 *... 7 1 0 1 1 9+ l o-i.0 1 -1 0 1 03 a 0 30 30 S z7Z1z G l0 5 5 30 I--/Sa - 8 z J G 4\7 z... /54 76' 5 z J5-- Z .4ek etnct ~~ 1zZ Z!IZZ O Z9 r76 Z31 IG 16 ij O Oti44+ 1... -11 4 1 L---77-P7-77,7W=:=4;T/-77A;" i 1 u 74 I-I. a o * o O 0 O o

Sequence: 2 (standard view) | zoom view

.... In the accompanying drawings:- 25 Figure 1 is an elevation, on an enlarged scale, of an adding machine constructed... views of the same. In the embodiment of may invention, I 35 provide a pair of shafts 1, 2 which... wheels or disks 17, 18, 19, 20 and 21-:are mounted on the shaft 1 for independent rotation aiid'are... to the shaft 1 and correspond with the peripheral numbers on said wheels and are adapted to be engaged... wheels or disks may be hollow or spoked. 110 1,361,949.

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