Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Dispersal
Patent
1997-03-24
1999-01-19
Douglas, Alan P.
Environmental heating and cooling; fluid handling and sanitary e
Fluid handling or treatment equipment
Dispersal
2301
Patent
active
D04044630
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patent: D263868 (1982-04-01), Chow
patent: D326502 (1992-05-01), Arnold
patent: D358449 (1995-05-01), Ford
patent: 1780233 (1930-11-01), Jenkins
patent: 5683035 (1997-11-01), Wang
Nelson Lawn and Garden catalog; Items # N-48FC and N-48SC sprinklers; p. 7, 1986.
Lawn and Garden products by Rainbird; item # RO-50 Sprinkler, 1995.
Nelson catalog; item #1922 sled base; p. 19, 1995.
Antel William E.
Causby Lyall John
Ledson Mark Simon
Antelco Pty. Ltd.
Douglas Alan P.
Taylor Robin V.
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