Horology: time measuring systems or devices – Mechanical time base – Mainspring
Patent
1978-10-10
1980-07-22
Jackmon, Edith S.
Horology: time measuring systems or devices
Mechanical time base
Mainspring
368151, 368208, G04B 312, G04B 504
Patent
active
042132932
ABSTRACT:
A receiving unit for timepieces, especially an improved receiving unit for a self-winding mechanism of self-winding timepieces. The receiving unit comprises guide portions and springs which are formed together as a unitary structure using resin.
REFERENCES:
patent: 3543506 (1970-12-01), Dubois et al.
patent: 4128992 (1978-12-01), Egger et al.
Mabuchi Hiroshi
Yabe Isao
Citizen Watch Co. Ltd.
Jackmon Edith S.
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