patent for "art of producing step-by-step movements" F.W.Wood, 1922 (Q31863)

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Revision as of 11:42, 30 July 2023 by ChrisVG (talk | contribs) (‎Created claim: Property:P40: 7 March 1922)

patent for a stepper motor

patent for a stepper motor
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patent for "art of producing step-by-step movements" F.W.Wood, 1922
patent for a stepper motor

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