EP0649075B1
(en )
1997-01-02
Spring barrel delivering a constant torque
DE807378C
(en )
1951-06-28
Sliding point tension spring for driving all kinds of clocks, technical equipment, etc.
US1922921A
(en )
1933-08-15
Mainspring for watches, clocks, etc.
DE1673629A1
(en )
1972-04-20
Mainspring for a spring mechanism
FR1176728A
(en )
1959-04-15
Motor spring
CH181861A
(en )
1936-01-15
Spring drives, in particular for clocks.
US1388913A
(en )
1921-08-30
Spring
DE741453C
(en )
1943-11-11
Repair spring for clockworks, especially alarm clockworks
US156480A
(en )
1874-11-03
Improvement in mainsprings
DE850575C
(en )
1952-09-25
Clockspring with hook
CH335154A
(en )
1958-12-31
Clockwork drive spring
GB252108A
(en )
1926-05-20
Improvements in driving springs
CH712359B1
(en )
2020-01-31
Motor spring in a metal matrix composite material.
FR1339741A
(en )
1963-10-11
Improvement in watch springs
FR871305A
(en )
1942-04-20
Repair spring for clockwork movements with a pendulum escapement comprising a spring which can be inserted laterally and method for producing such a spring
CH346163A
(en )
1960-04-30
Brake spring for barrel spring and method of manufacture thereof
CH220791A
(en )
1942-04-30
Repair tension spring for movements with balance escapement, which can be retracted from the side without dismantling the movement.
CH298198A
(en )
1954-04-30
Motor spring, in particular for clock barrel.
GB217224A
(en )
1924-09-25
Improvements in flat spiral or coil springs
CH47144A
(en )
1910-06-01
Motor spring for timepiece barrels
CH568596B5
(en )
1975-10-31
Motor spring for timepiece
FR25890A
(en )
1860-04-07
FR146070A
(en )
FR128652A
(en )
FR411824A
(en )
1910-06-27
Compensating system for clockwork motor springs