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Roland Lambert
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Longwood, FL, US
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last 30 patents
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Patent Grant
Subterranean heating and cooling system
Patent number
4,449,572
Issue date
May 22, 1984
Ladek Corporation
Roland Lambert
F24 - HEATING RANGES VENTILATING
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Patent Grant
Subterranean heating and cooling system
Patent number
4,369,635
Issue date
Jan 25, 1983
Ladek Corporation
Roland Lambert
F24 - HEATING RANGES VENTILATING
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Patent Grant
Subterranean heating and cooling system
Patent number
4,279,291
Issue date
Jul 21, 1981
Ladek Corporation
Roland Lambert
F24 - HEATING RANGES VENTILATING