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3874845
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Information
Patent Grant
3874845
References
Source
Patent Number
3,874,845
Date Filed
Not available
Date Issued
Tuesday, April 1, 1975
49 years ago
CPC
F27B9/042 - Vacuum furnaces
F27B9/24 - being carried by a conveyor
F27D7/06 - Forming or maintaining special atmospheres or vacuum within heating chambers
US Classifications
432 - Heating
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