Water purification unit

Details Water purification unit Water purification unit

1997-07-09

1999-03-30

Douglas, Alan P.

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Treatment

D23209, 2301

Patent

active

D04074629

REFERENCES:
patent: D236829 (1975-09-01), Berry et al.
patent: D306754 (1990-03-01), Petrucci et al.
patent: D377677 (1997-01-01), Robbins
patent: 4713175 (1987-12-01), Bray
patent: 5143601 (1992-09-01), Slovak et al.
patent: 5407571 (1995-04-01), Rothwell
patent: 5662792 (1997-09-01), Suh

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