Difference between revisions of "patent for "art of producing step-by-step movements" F.W.Wood, 1922 (Q31863)"
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(Created claim: author (P41): Frank W. Wood (Q31864)) | (Created claim: Copy available online (P37): https://patents.google.com/patent/US1408555A) | ||
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| Property / Copy available online: https://patents.google.com/patent/US1408555A / rank | |||
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Revision as of 11:39, 30 July 2023
patent for a stepper motor
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | patent for "art of producing step-by-step movements" F.W.Wood, 1922 | patent for a stepper motor |