Metal working
Method of mechanical manufacture
Valve or choke making
Inventor
active
Compressor valve with flat spring
Gas compressor comprising a double acting piston, an...
Hydraulically-operated valve assembly
Means for moving a valve within a gas compressor having a straig
Method of injection molding a plastic plate
No associations
LandOfFree
Derek Woollatt does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Derek Woollatt, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Derek Woollatt will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-112563