Electronic controller for sprinkler systems

Details Electronic controller for sprinkler systems Electronic controller for sprinkler systems

1987-12-04

1990-10-09

Dwyer, James L.

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

With blocking of normal usage

379105, 239 70, 34082544, 3403111, A01G 2700

Patent

active

049625225

ABSTRACT:
The invention permits modification of the operation of irrigation controllers at a plurality of sites without investment in any additional equipment except for one paging receiver per site.

REFERENCES:
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patent: 4209131 (1980-06-01), Barash et al.
patent: 4396149 (1983-08-01), Hirsch
patent: 4431338 (1984-02-01), Hornabrook
patent: 4626984 (1984-08-01), Unruh et al.
patent: 4691341 (1987-09-01), Knoble

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