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1922640
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Patent Grant
1922640
References
Source
Patent Number
1,922,640
Date Filed
Not available
Date Issued
Tuesday, August 15, 1933
90 years ago
CPC
F01M13/04 - having means for purifying air before leaving crankcase
F01M2013/0411 - using cooling means
US Classifications
123 - Internal-combustion engines
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