Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Fitting
Patent
1997-08-14
2000-03-14
Douglas, Alan P.
Environmental heating and cooling; fluid handling and sanitary e
Fluid handling or treatment equipment
Fitting
2301
Patent
active
D04216431
REFERENCES:
patent: D274210 (1984-06-01), Haggard
patent: 1844443 (1932-02-01), Schmidt
patent: 1858268 (1932-05-01), Fleming
patent: 2550401 (1951-04-01), Boosey
Douglas Alan P.
Hecker Reid
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