Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Treatment
Patent
1987-10-30
1990-05-01
Lucas, Susan J.
Environmental heating and cooling; fluid handling and sanitary e
Fluid handling or treatment equipment
Treatment
Patent
active
D03076261
REFERENCES:
patent: 203110 (1878-04-01), Brach
patent: D291721 (1987-09-01), Willinger
patent: 3525435 (1970-08-01), Conner, Jr.
patent: 4448686 (1984-05-01), Friedman
patent: 4714547 (1987-12-01), Willinger
Lucas Susan J.
Tung M. H.
Willinger Brothers, Inc.
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