Ralph D. Gwilliam

Follow

Person

St. Austell, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Pressure filters
- Patent number 4,366,055
- Issue date Dec 28, 1982
- English Clay Lovering Pochin & Company
- Ralph D. Gwilliam
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL