Uncategorized
Inventor
Aromatic basic derivative
Bolster plate
Carton forming apparatus
Construction of timber roofs
Conveyor belt cleaning system
Bolster plate
Construction of timber roofs
Conveyor belt cleaning system
Improvements in railway switches
Improvements on air brakes
LandOfFree
John Hall 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 Hall, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and John Hall will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-P-13108