Lawn sprinkler

Details Lawn sprinkler Lawn sprinkler

1978-02-15

1980-01-08

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D2301

Patent

active

D02539047

REFERENCES:
patent: D22190 (1893-01-01), Baker et al.
patent: D82745 (1930-12-01), Heal
patent: D148035 (1947-12-01), Parker
patent: D200041 (1965-01-01), Boyd
patent: D204123 (1966-03-01), Hayes
patent: D238670 (1976-02-01), Beamer
patent: D239174 (1976-03-01), Raffler et al.
patent: 1181145 (1916-05-01), Larson
patent: 1938837 (1933-12-01), Ittner
patent: 2122055 (1938-06-01), Donnellan

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