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Language: en
Pages: 244
Index to the U.S. Patent Classification
Authors:
United States. Patent and Trademark Office
Categories:
Patents
Type:
BOOK -
Published:
1977 -
Publisher:
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Language: en
Pages:
Index to the U.S. Patent Classification System
Authors:
United States. Patent and Trademark Office
Categories:
Patents
Type:
BOOK -
Published:
1991 -
Publisher:
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Language: en
Pages: 6
IPC Green Inventory
Authors:
World Intellectual Property Organization
Categories:
Law
Type:
BOOK -
Published:
201? -
Publisher:
WIPO
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This brochure explains how the IPC Green Inventory can give direct access to the latest patent information about technologies in a number of fields including al
Language: en
Pages: 251
Index to the U.S. Patent Classification System
Authors:
United States. Patent and Trademark Office
Categories:
Patents
Type:
BOOK -
Published:
2003 -
Publisher:
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Language: en
Pages: 60
Handbook on the Use of the U.S. Patent Classification System
Authors:
United States. Patent and Trademark Office. Search and Information Resources
Categories:
Patent searching
Type:
BOOK -
Published:
1997 -
Publisher:
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