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3671047
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Information
Patent Grant
3671047
References
Source
Patent Number
3,671,047
Date Filed
Not available
Date Issued
Tuesday, June 20, 1972
52 years ago
CPC
B23P15/08 - piston rings from several pieces
F16J9/26 - characterised by the use of particular materials
Y10S277/936 - Composite
Y10S277/946 - PTFE
Y10T29/49281 - including coating or plating
US Classifications
277 - Seal for a joint or juncture
029 - Metal working
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