-
-
Solar heating system
-
Patent number 4,413,614
-
Issue date Nov 8, 1983
-
Halm Instrument Co., Inc.
-
Floyd A. Lyon
-
F24 - HEATING RANGES VENTILATING
-
Solar heating system
-
Patent number 4,313,419
-
Issue date Feb 2, 1982
-
Halm Instrument Co., Inc.
-
Floyd A. Lyon
-
F24 - HEATING RANGES VENTILATING
-
Heat storage water tank
-
Patent number RE30540
-
Issue date Mar 10, 1981
-
Halm Instrument Co., Inc.
-
Floyd A. Lyon
-
126 - Stoves and furnaces
-
Air-heating solar collector
-
Patent number 4,155,344
-
Issue date May 22, 1979
-
Halm Instrument Co., Inc.
-
Floyd A. Lyon
-
F24 - HEATING RANGES VENTILATING
-
Solar heat absorber plate
-
Patent number 4,133,299
-
Issue date Jan 9, 1979
-
Halm Instrument Co. Inc.
-
Floyd A. Lyon
-
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
-
Heat storage water tank
-
Patent number 4,108,374
-
Issue date Aug 22, 1978
-
Halm Instrument Co., Inc.
-
Floyd A. Lyon
-
F24 - HEATING RANGES VENTILATING
-
-
Air-heating solar collector
-
Patent number 4,086,909
-
Issue date May 2, 1978
-
Halm Instrument Co., Inc.
-
Floyd A. Lyon
-
F24 - HEATING RANGES VENTILATING
-
Evacuated solar heat collector
-
Patent number 4,038,965
-
Issue date Aug 2, 1977
-
Halm Instrument Co., Inc.
-
Floyd A. Lyon
-
F24 - HEATING RANGES VENTILATING