patent for a light-collecting reflector by Joseph H Labrum (Q31196)
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Revision as of 20:04, 30 April 2023 by ChrisVG (talk | contribs) (Created claim: Property:P41: Item:Q31193)
No description defined
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | patent for a light-collecting reflector by Joseph H Labrum | No description defined |