TY  - BOOK
AU  - Dégailler,Edmond
TI  - Tables des Ressorts-Moteurs
T2  - Bibliothèque horlogère
PY  - 1928///
CY  - Bienne
PB  - E. Magron
KW  - Clocks and watches
KW  - Design and construction
KW  - Non-mechanical
KW  - Switzerland
KW  - mainspring ressort
KW  - Magron
KW  -   materials watch practical
KW  - Mechanics
KW  - Degallier, Edmond
ER  -