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Priority to ES0045190UpriorityCriticalpatent/ES45190Y/en
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Adding and subtracting machine, characterized by the fact that inside a rectangular box, in the sense of its smallest dimension, a series of parallel axes carrying each one of an integrating disk, a ten-tooth cog and a dragging finger are mounted , and a discontinuous toothed pinion to which one of its ten teeth has been removed, interspersed between these axes, at a higher height, other axles carrying five-pinion gears that engage each one with a gear wheel, but in different planes that go alternating successively forming pairs. (Machine-translation by Google Translate, not legally binding)
ES0045190U1954-11-231954-11-23
Add and subtract machine
ExpiredES45190Y
(en)