|Luogo:||New York (NY), USA|
|Persona:||Farbman, William (P)|
|Link al brevetto:|
|US2533443 (espacenet), US2533443 (uspto)|
This invention relates to computing devices and more particularly to an adding machine pr the like of0 the type that may be carried about in a pocket such as of a vest or coat etc.
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Another object of this invention, is to provide a series of numbering wheels arranged to perform operations of addition, multiplication or division and wherein each wheel directly actuates a succeeding wheel and is arranged to effectively by-pass a preceding wheel without interfering therewith. This, objective is accomplished, moreover, by a minimum of component parts insuring cheapness of manufacture as well as ease of operation.