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Janssen, Barbara Suit,

Patent models index : : guide to the collections of the National Museum of American History, Smithsonian Institution / Barbara Suit Janssen. - 2 volúmenes : ilustraciones. - Smithsonian contributions to history and technology; no.54 .

Contiene: v.1 Listings by patent number and invention name; v.2 Listings by inventor and residence of inventor.

ISSN: 19485999

Subjects--Topical Terms:
INVENTOS--ESTADOS UNIDOS.
PATENTES--ESTADOS UNIDOS--INDICE.

Dewey Class. No.: 608.773