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Class 340 - Communications: Electrical, Patent Classification Definitions, Patent & Trademark Office U.S. Dept. of Commerce, December 1999
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Class 340 Communications: Electrical... Patent Classification Definitions... Patent And Trademark Office... U.S. Dept. Of Commerce... December 1996
Author: United States. Patent and Trademark Office
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Languages : en
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Class 340 Communications: Electrical... Patent Classification Definitions... Patent And Trademark Office... U.S. Dept. Of Commerce... June 1997
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Class 340 Communications: Electrical... Patent Classification Definitions... U.S. Dept. Of Commerce - Patent And Trademark Office... June 1998
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Class 340 Communications: Electrical Patent Classification Definitions U.S. Dept. Of Commerce December 1998
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Class 359 - Systems (Including Communication) and Elements, Patent Classification Definitions, Patent & Trademark Office, U.S. Dept. of Commerce, December 1999
Author: United States. Patent and Trademark Office
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Languages : en
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Class 379 - Telephonic Communications, Patent Classification Definitions, Patent & Trademark Office, U.S. Dept. of Commerce, December 1999
Author: United States. Patent and Trademark Office
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Languages : en
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Class 178 - Telegraphy, Patent Classification Definitions, Patent & Trademark Office, U.S. Dept. of Commerce, December 1999
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Class 375 - Pulse Or Digital Communications, Patent Classification Definitions, Patent & Trademark Office, U.S. Dept. of Commerce, December 1999
Author: United States. Patent and Trademark Office
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Languages : en
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Class 326 - Electronic Digital Logic Circuitry, Patent Classification Definitions, Patent & Trademark Office, U.S. Dept. of Commerce, December 1999
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