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1985410
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Patent Grant
1985410
References
Source
Patent Number
1,985,410
Date Filed
Not available
Date Issued
Tuesday, December 25, 1934
89 years ago
CPC
H01T21/04 - Cleaning
US Classifications
007 - Compound tools
015 - Brushing, scrubbing, and general cleaning
072 - Metal deforming
445 - Electric lamp or space discharge component or device manufacturing
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