Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1984-03-19
1986-11-25
Gandy, James M.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D23 27
Patent
active
D02869071
REFERENCES:
patent: D142771 (1945-11-01), Chapman, Jr.
patent: 4046350 (1977-09-01), Massey et al.
Waterman Hydraulic Components Catalog, p. 19, Three Position Valve, top of page.
Hilpert Bruno
Hunziker Bruno
Gandy James M.
Georg Fischer Aktiengesellschaft
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