Frostproof hydrant

Details Frostproof hydrant Frostproof hydrant

1982-09-20

1986-01-07

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

Patent

active

D02820994

REFERENCES:
patent: D226482 (1973-03-01), Uroshevieh
patent: D236468 (1975-08-01), Peters
patent: D244605 (1977-06-01), Ratnik
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patent: 1172959 (1916-02-01), Dormon
patent: 1200961 (1916-10-01), Mabe et al.
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patent: 2099928 (1937-11-01), Doppelhammer
patent: 2109187 (1938-02-01), Vogel
patent: 3036466 (1962-11-01), Hayden
patent: 3380533 (1968-04-01), Andrew
patent: 3858599 (1975-01-01), Carlson
patent: 3943963 (1976-03-01), Papacek

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