Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Treatment
Patent
1996-08-30
1997-11-11
Douglas, Alan P.
Environmental heating and cooling; fluid handling and sanitary e
Fluid handling or treatment equipment
Treatment
2301
Patent
active
D03862429
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patent: D372515 (1996-08-01), Douglas
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patent: 4686037 (1987-08-01), Lang
Clack Robert A.
Fieldstad Leigh A.
Gilbertson Mark
Klein Daniel A.
Clack Corporation
Douglas Alan P.
Taylor Robin V.
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