Uncategorized
Inventor
Country: Canada
Improvements in spring motors
Steam engine and boiler
LandOfFree
David J. Burkholder does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with David J. Burkholder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and David J. Burkholder will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-114848