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Publication of CH1183573A4publicationCriticalpatent/CH1183573A4/xx
G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
G04B17/00—Mechanisms for stabilising frequency
G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
G04B17/325—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring in a fixed position, e.g. using a block
