Sprinkler

Details Sprinkler Sprinkler

1979-10-10

1982-10-05

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D2301

Patent

active

D02664496

REFERENCES:
patent: D196094 (1963-08-01), Fee et al.
patent: 2421551 (1947-06-01), Dunham
patent: 2596383 (1952-05-01), Dunham
patent: 2944743 (1960-07-01), Kaehergis
patent: 3009650 (1961-11-01), Alvarez
patent: 3043522 (1962-07-01), Ryerson
patent: 3669356 (1972-06-01), Senninger
patent: 3843059 (1974-10-01), Segev
patent: 3930617 (1976-01-01), Dunmire
patent: 4033509 (1977-07-01), Sheets

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