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2929305
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Information
Patent Grant
2929305
References
Source
Patent Number
2,929,305
Date Filed
Not available
Date Issued
Tuesday, March 22, 1960
64 years ago
CPC
G03B41/026 - combined with slit
US Classifications
396 - Photography
116 - Signals and indicators
352 - Optics: motion pictures
359 - Optical: systems and elements
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