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2413349
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Information
Patent Grant
2413349
References
Source
Patent Number
2,413,349
Date Filed
Not available
Date Issued
Tuesday, December 31, 1946
77 years ago
CPC
G03B41/026 - combined with slit
G01P3/36 - Devices characterised by the use of optical means
US Classifications
396 - Photography
250 - Radiant energy
318 - Electricity: motive power systems
324 - Electricity: measuring and testing
361 - Electricity: electrical systems and devices
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