Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Treatment
Patent
1990-11-30
1992-07-28
Lucas, Susan J.
Environmental heating and cooling; fluid handling and sanitary e
Fluid handling or treatment equipment
Treatment
Patent
active
D03283305
REFERENCES:
patent: D225325 (1972-12-01), Marsh
patent: D225327 (1972-12-01), Marsh
patent: D238363 (1976-01-01), Polens
patent: D253007 (1979-09-01), Casberg et al.
patent: 3326377 (1967-06-01), Abos
Drager Michael E.
Tischler Edward J.
Winberg Dennis G.
Ecowater Systems, Inc.
Gealow Jon C.
Lucas Susan J.
Tung M. H.
Wetzel James M.
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