Horology: time measuring systems or devices
Mechanical time base
Mainspring
Inventor
active
Reverser mechanism for uni-directional rotational driving of...
Shock absorber bearing for a timepiece
Shock absorber bearing for a timepiece
No associations
LandOfFree
Jean-Luc Helfer does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Jean-Luc Helfer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Jean-Luc Helfer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-3105390