Sprinkler

Details Sprinkler Sprinkler

1979-12-26

1981-06-23

Langen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D2301

Patent

active

D02596555

REFERENCES:
patent: D178782 (1956-09-01), Jepson
patent: D180132 (1957-04-01), Beinert
patent: D207575 (1967-05-01), Beinert
patent: D250769 (1979-01-01), Dadson
patent: 3115305 (1963-12-01), Rinkewich
patent: 3175770 (1965-03-01), Johnson
patent: 3286929 (1966-11-01), Henningsen
patent: 3332624 (1967-07-01), Rinkewich
patent: 3423024 (1969-01-01), Morawetz
patent: 3788551 (1974-01-01), Standal

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