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

C09B51/00 Nitro or nitroso dyes
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Landscapes

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CS150237B2

Czechoslovakia


Worldwide applications
1968 US FR 1969 BE CH CH GB DE CS

Application CS290A events
1969-01-16
Application filed