Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
Inventor
active
Apparatus for feeding photographic film having two perforations
Apparatus for feeding photographic film having two perforations
Depth-of-field preview apparatus for a single lens reflex camera
Diaphragm control device for cameras
Driving mechanism of camera and friction mechanism therefor
No associations
LandOfFree
Yasuo Hawai does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Yasuo Hawai, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Yasuo Hawai will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-289272