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Ideas that Become Valuable Innovations
United States. Patent and Trademark Office
其他書名
A Patent and Trademark Office Review
出版
U.S. Department of Commerce, U.S. Patent and Trademark Office
, 1998
URL
http://books.google.com.hk/books?id=2ZoEFq9B36cC&hl=&source=gbs_api
EBook
FULL_PUBLIC_DOMAIN