Geometrical instruments
Straightedge type
Cord type
Inventor
active
No associations
LandOfFree
John E Johnston does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with John E Johnston, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and John E Johnston will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-3323902