Practical balance and hair-spring work,

Kleinlein, Walter J. 1876-

Practical balance and hair-spring work, by Walter J. Kleinlein. - ix, 115 pages : illustrations, diagrams ; 18 cm

Reprint of original: [Boston] : The Author, ©1925.


Clocks and watches--Repairing.

Adjust USA hairspring Kleinlein, Walter J. Watch (general)