Pendulum for sine-wheel type timepiece movement
patented 1947
Winding key for sine-wheel type timepiece movement
patented 1947
Timepiece movement with magnetic escapement of sine-wheel type
patented 1947
Hand for sine-wheel type timepiece movement
patented 1947
Model of a cylinder escapement
Winding key for cylinder escapement model
Hand for sine-wheel type timepiece movement
patented 1947
Sine-wheel type timepiece movement, with pendulum, hands and winding key
1947-1951