Inventor

ORAVITZ JR JAMES L

US3 patents

Patents

3 patents

US5124185AJun 23, 1992

Vacuum insulating unit

PPG INDUSTRIES INC195 citations96

US4084737AApr 18, 1978

Oilless fluid for scoring glass

PPG INDUSTRIES INC8 citations68

US4423835AJan 3, 1984

Method of imposing a damage free score in a refractory piece

PPG INDUSTRIES INC3 citations59