Difference between revisions of "patent for "art of producing step-by-step movements" F.W.Wood, 1922 (Q31863)"
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(Created claim: Backup document (P74): US1408555.pdf) | (Created claim: Publication date (P40): 7 March 1922) | ||||||||||||||
| Property / Publication date | |||||||||||||||
| + | 7 March 1922Gregorian
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| Property / Publication date: 7 March 1922Gregorian / rank | |||||||||||||||
| + | Normal rank | ||||||||||||||
Revision as of 11:42, 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 |
Statements
7 March 1922Gregorian
0 references