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

Systèmes électro-acoustiques

Classifications

H04R23/00 Transducers other than those covered by groups H04R9/00 - H04R21/00

Landscapes

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FR867850A

France

Other languages
English
Current Assignee
Thales SA

Worldwide applications
1940 FR

Application events
1941-11-29
Application granted
Expired