NASA NTRS · 19910008521
NASA patent abstracts bibliography: A continuing bibliography. Section 2: Indexes (supplement 38)
Abstract
A subject index is provided for over 4900 patents and patent applications for the period May 1969 through December 1990. Additional indexes list personal authors, corporate authors, contract numbers, NASA case numbers, U.S. patent class numbers, U.S. patent numbers, and NASA accession numbers.
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1991-01-01. NASA patent abstracts bibliography: A continuing bibliography. Section 2: Indexes (supplement 38). https://ntrs.nasa.gov/citations/19910008521
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