Difference between revisions of "Patent for a shutter system for stage-lighting spotlights by Joseph H Labrum (Q31194)"
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(Created claim: Publication date (P40): 1 July 1980) | (Created claim: Backup document (P74): US4210955.pdf) | ||
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| Property / mentions: shutter / rank | |||
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| Property / Copy available online: https://patents.google.com/patent/US4210955 / rank | |||
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| Property / Backup document: US4210955.pdf / rank | |||
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Latest revision as of 19:57, 30 April 2023
No description defined
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Patent for a shutter system for stage-lighting spotlights by Joseph H Labrum | No description defined |
Statements
1 July 1980
0 references