Typewriting machines
Having typewriter-controlled reciprocable electromagnetic...
Inventor
active
Bridge plate for a mass transit vehicle
Low cost quiet impact printer
Ribbon drive for low cost quiet impact printer
Ribbon tension and metering control
Typewriter cable tensioning mechanism
No associations
LandOfFree
Alf J. Olsen does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Alf J. Olsen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alf J. Olsen will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-860050