Historical first patents
Subtitle: the first United States patentfor many everyday things
By: by Travis Brown.
Publisher: Scarecrow Press
Published: 1994
Place of publication: Metuchen, N.J
Language: eng
Number of pages: 216
Subjects: Patents -- United States -- History; Inventions -- United States -- History
Notes: R141,210

Includes bibliographical references (p. 197-205) and index.