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Celebration of the Beginning of the Second Century of the American Patent System
pocket,
2017,
Engelska,
ISBN 9783337406134
Celebration of the Beginning of the Second Century of the American Patent System - at Washington City, D. C., April 8, 9, 10, 1891 is an unchanged, high-quality reprint of the …
Subject-matter Index of Patents for Inventions
pocket,
2018,
Engelska,
ISBN 9783337703738
Proceedings and Addresses
pocket,
2020,
Engelska,
ISBN 9783337896713
Proceedings and Addresses - Celebration of the Beginning of the second century of the American Patent System of Washington City, D.C. April 8,9,10, 1891 is an unchanged, …
Definitions Of Revised Classes And Subclasses Of Subjects Of Invention In The United States Patent Office
pocket,
2008,
Engelska,
ISBN 9780548895726
Subject-matter Index of Patents for Inventions
pocket,
2018,
Engelska,
ISBN 9783337703745
Subject-matter Index of Patents for Inventions
pocket,
2020,
Engelska,
ISBN 9783337898342
Subject-matter Index of Patents for Inventions - Attestati di privative industriali - granted in Italy, from 1848 to May 1, 1882 is an unchanged, high-quality reprint of the …