Patents

Search tools Text Classification Chemistry Measure Numbers Full documents Title Abstract Claims All Any Exact Not Add AND condition These CPCs and their children These exact CPCs Add AND condition
Exact Exact Batch Similar Substructure Substructure (SMARTS) Full documents Claims only Add AND condition
Add AND condition
Application Numbers Publication Numbers Either Add AND condition

Classifications

F01L3/22 Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats

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CS172287B2

Czechoslovakia


Worldwide applications
1974 FR 1975 CH US CS YU IT DD ES NO SU SE FI JP DK NL PL BR BE

Application CS350A events
1975-01-17
Application filed