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1.
Watch and clock escapements : a complete study in theory and practice of the lever, cylinder and chronometer escapements, together with a brief account of the origin and evolution of the escapement in horology. / compiled from the well-known escapement serials published in the Keystone. Nearly two hundred original illustrations. by
Edition: [1st edition].
Material type: Text Text; Format: print ; Literary form: Not fiction
Publisher: Philadelphia : Published by the Keystone, 1904
Availability: Items available for loan: Jost Bürgi Library (1)Call number: TS548 .K44 1904.
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2.
Lessons in horology / by Jules Grossmann ... and Hermann Grossmann. Authoritzed translation by James Allan, Jr. ... volume1- by
Material type: Text Text; Format: print ; Literary form: Not fiction
Language: English Original language: French Publisher: Philadelphia : The Keystone, 1905-
Availability: Items available for loan: Jost Bürgi Library (1)Call number: TS545 .G87 1905 v.1.
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