Fred H. Zajonc

Follow

Person

Palatine, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method for cutting gypsum board with high velocity fluid cutting jet
- Patent number 4,496,515
- Issue date Jan 29, 1985
- United States Gypsum Company
- Mitchell P. Ptasienski
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Pallet having reinforced gypsum structural members
- Patent number 4,142,471
- Issue date Mar 6, 1979
- United States Gypsum Company
- Robert M. Mustoe
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL