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

G02B6/02 Optical fibres with cladding with or without a coating
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CS150242B2

Czechoslovakia


Worldwide applications
1968 GB 1969 US DE FR CS

Application CS1480A events
1969-02-28
Application filed