Patent for a light projector by Herbert F King (Q31173)
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Revision as of 09:49, 30 April 2023 by ChrisVG (talk | contribs) (Created claim: Property:P37: https://patents.google.com/patent/US1680685A/en)
No description defined
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Patent for a light projector by Herbert F King | No description defined |