Difference between revisions of "Patent for a light projector by Herbert F King (Q31173)"
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(Created claim: Backup document (P74): US1680685.pdf) | (Created claim: Publication date (P40): 14 August 1928) | ||||||||||||||
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Latest revision as of 09:53, 30 April 2023
No description defined
| Language | Label | Description | Also known as |
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| English | Patent for a light projector by Herbert F King | No description defined |
Statements
14 August 1928Gregorian
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