An edition of Historical first patents (1994)
Historical first patents
the first United States patent for many everyday things
By Travis Brown
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Publish Date
1994
Publisher
Scarecrow Press
Language
eng
Pages
216
Description:
subjects: History, Patents, Inventions, Erfindung, Patents as Topic, Octrooien, Uitvindingen, Patent, Geschichte, Inventions, history
Places: United States