Sprinkler controller

Details Sprinkler controller Sprinkler controller

1978-07-25

1981-02-03

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D2301

Patent

active

D02581400

REFERENCES:
patent: D196603 (1963-10-01), Beinert
patent: D212154 (1968-09-01), Burton
patent: D247717 (1978-04-01), Sturman et al.
patent: 3708068 (1973-01-01), Tischler
patent: 3989066 (1976-11-01), Sturman et al.
patent: 3991375 (1976-11-01), Riggs et al.
patent: 3991939 (1976-11-01), Maclay
patent: 4101786 (1978-07-01), Ruggles et al.
patent: 4114647 (1978-09-01), Sturman et al.
patent: 4146054 (1979-03-01), Kah, Jr.
patent: 4180099 (1979-12-01), Moore

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