Rotary expansible chamber devices
With plural working fluid inlet or outlet passages
Inventor
active
No associations
LandOfFree
John Hallman 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 Hallman, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and John Hallman will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-322980