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

D02G1/08 Rollers or other friction causing elements

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CS166048B2

Czechoslovakia


Worldwide applications
1972 FR CH ES DE IT GB US CS

Application CS8925A events
1972-12-27
Application filed