Difference between revisions of "Patent of a adjustable projector by Charles Andreino (Q31170)"
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(Created claim: Copy available online (P37): https://patents.google.com/patent/US1747279A/en) | (Created claim: Backup document (P74): US1747279.pdf) | ||
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Revision as of 09:41, 30 April 2023
No description defined
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Patent of a adjustable projector by Charles Andreino | No description defined |