Difference between revisions of "patent for a light-collecting reflector by Joseph H Labrum (Q31196)"
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(Changed [en] label: patent for a light-collecting reflector by Joseph H Labrum) |
(Created claim: Type of information (P11): source (Q98)) |
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Revision as of 20:03, 30 April 2023
No description defined
| Language | Label | Description | Also known as |
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| English |
patent for a light-collecting reflector by Joseph H Labrum
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No description defined
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