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Penrose Robinson Hoopes collection

Letters, patents, notes and treatises relating to inventors and inventions, collected by Penrose Robinson Hoopes, a Philadelphia engineer. Includes "Mechanical Manipulation Turning, Forging etc. Grinding, Polishing etc.," and undated (c. 1860) mechanics commonplace books, The Practical Me...

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Bibliographic Details
Main Author: Hoopes, Penrose Robinson (Creator)
Collection:Penrose Robinson Hoopes Collection
Collection Number:LCP.in.HSP206
Format: Manuscript
Language:English
Subjects and Genres:
Inventions and Improvements > 19th century
Patents > Machinery > 19th century
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