Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Treatment
Patent
1997-10-31
1998-11-03
Douglas, Alan P.
Environmental heating and cooling; fluid handling and sanitary e
Fluid handling or treatment equipment
Treatment
D23213, 2301
Patent
active
D04006437
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patent: 5259409 (1993-11-01), Cervola
patent: 5303729 (1994-04-01), DeMarco
patent: 5366159 (1994-11-01), Childers
Douglas Alan P.
Taylor Robin V.
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