Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Valve or body therefor
Patent
1989-12-08
1992-08-25
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Fluid handling or treatment equipment
Valve or body therefor
Patent
active
D03289451
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patent: 3838707 (1974-10-01), Wachowitz, Jr.
patent: 4421295 (1983-12-01), Parkison
patent: 4819691 (1989-04-01), Lofgren et al.
Aarthun Nils I.
Lofgren Peter
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