Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Dispersal
Patent
1997-04-09
1998-02-10
Douglas, Alan P.
Environmental heating and cooling; fluid handling and sanitary e
Fluid handling or treatment equipment
Dispersal
2301
Patent
active
D03906310
REFERENCES:
patent: D198356 (1964-06-01), Wahlin
patent: D234766 (1975-04-01), Raffler et al.
patent: 2071920 (1937-02-01), Czarnecki
patent: 4850531 (1989-07-01), Littleton
patent: 5368237 (1994-11-01), Fulkersn
Nelson catalog, item #4034 Full circle adjustable sprayer, p. 42, 1995.
Burns Ian F.
Douglas Alan P.
Taylor Robin V.
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