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3638494
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Patent Grant
3638494
References
Source
Patent Number
3,638,494
Date Filed
Not available
Date Issued
Tuesday, February 1, 1972
52 years ago
CPC
G01J5/602 - using selective, monochromatic or bandpass filtering
G01J5/56 - Electrical features
G01K11/006 - using measurement of the effect of a material on microwaves or longer electromagnetic waves
US Classifications
374 - Thermal measuring and testing
342 - Communications: directive radio wave systems and devices
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