Inventor
OVERALL JOHN C K
CA4 patents
Patents
4 patentsUS4275705AJun 30, 1981
Two-stage heat exchanger
CANADIAN GAS RESEARCH INST54 citations87
US5568804AOct 29, 1996
Sealed combustion range
CANADIAN GAS RESEARCH INST21 citations86
US5406932AApr 18, 1995
Sealed combustion range
CANADIAN GAS RESEARCH INST15 citations67
US5253635AOct 19, 1993
Gas-fired heater
CANADIAN GAS RESEARCH INST12 citations64