Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Fitting
Patent
1998-04-29
2000-04-18
Douglas, Alan P.
Environmental heating and cooling; fluid handling and sanitary e
Fluid handling or treatment equipment
Fitting
2301
Patent
active
D04230884
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Specification for Reinforced Concrete Apron Endwall for Pipe Underdrain by the State of Wisconsin, Department of Transportation, undated.
Douglas Alan P.
Hecker Reid
Midwest Plastic Materials, Inc.
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