G. P. Research Ltd.

Follow

Organization

CA

Organizations

Please log in for detailed analytics

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for reclaiming gypsum from waste wallboard
- Patent number 5,304,276
- Issue date Apr 19, 1994
- G. P. Research Ltd.
- Bruce C. MacLeod
- B28 - WORKING CEMENT, CLAY, OR STONE