Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Fitting
Patent
1986-07-14
1989-05-16
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Fluid handling or treatment equipment
Fitting
D30199, D23261
Patent
active
D03011640
REFERENCES:
patent: D288840 (1987-03-01), Williams
patent: 1104806 (1914-07-01), Kahn
patent: 1412651 (1922-04-01), Borden
patent: 1663777 (1928-03-01), Sargent
patent: 2093515 (1937-09-01), Filkins
patent: 2927596 (1960-03-01), Carlson
patent: 4174913 (1979-11-01), Schliester
Largen James R.
Marzocco Ralph L.
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