Uncategorized
Inventor
Manufacture of calcium hypochlorite bleach liquor
Papermaking machine
Papermaking machine
Two ply printing paper and method of producing the same
No associations
LandOfFree
H. Heller Harold does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with H. Heller Harold, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and H. Heller Harold will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-732008