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Class 219 - Electric Heating, Patent Classification Definitions, Patent & Trademark Office, U.S. Dept. of Commerce, December 1999
Class 219 - Electric Heating, Patent Classification Definitions, U.S. Dept. Of Commerce - Patent And Trademark Office, June 2000
Class 219 Electric Heating Patent Classification Definitions U.S. Dept. Of Commerce December 1998
Class 100 - Presses, Patent Classification Definitions, Patent & Trademark Office, U.S. Dept. of Commerce, December 1999
Class 178 - Telegraphy, Patent Classification Definitions, Patent & Trademark Office, U.S. Dept. of Commerce, December 1999
Class 340 - Communications: Electrical, Patent Classification Definitions, Patent & Trademark Office U.S. Dept. of Commerce, December 1999
Class 315 - Electric Lamp and Discharge Devices: Systems, Patent Classification Definitions, Patent & Trademark Office, U.S. Dept. of Commerce, December 1999
Class 235 - Registers, Patent Classification Definitions, Patent & Trademark Office, U.S. Dept. of Commerce, December 1999
Class 361 - Electricity: Electrical Systems and Devices, 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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Publisher:
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Class 53 - Package Making, 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
Pages :
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Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description