Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Dispersal
Patent
1996-03-29
1998-03-03
Douglas, Alan P.
Environmental heating and cooling; fluid handling and sanitary e
Fluid handling or treatment equipment
Dispersal
D23219, 2301
Patent
active
D03916251
REFERENCES:
patent: D151118 (1948-09-01), Borgerson
patent: D194656 (1963-02-01), Cornwell
patent: 2883116 (1959-04-01), Muench
Nelson catalog, #1860 traveling sprinkler, p. 20, 1995.
Douglas Alan P.
Taylor Robin V.
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