Titles written by Michael Heller:
Number of documents found: 1
- John Prior
Title: Detached escapement for watches
SubTitle: [An article in 'Transactions of the Society of Arts'-Vol.16, pp. 306-317, 1 plate][ Lever escapent with pins alternatly on two sides of escape wheel ]
Keywords: escapement watch
Edition: 1798
Page or pages: 12
BHM No: 21834
Use browser Back to return to previous page