Irrigation spray head

Details Irrigation spray head Irrigation spray head

1980-04-24

1981-08-11

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D23 6, D2301

Patent

active

D02601699

REFERENCES:
patent: D253364 (1979-11-01), McFadden
patent: D253842 (1980-01-01), Addison et al.
patent: 458607 (1891-09-01), Weiss
patent: 792309 (1905-06-01), Buell
patent: 1165313 (1915-12-01), Bower
patent: 1263416 (1918-04-01), Howarth et al.
patent: 1736256 (1929-11-01), Doughty
patent: 1764570 (1930-06-01), Lohman
patent: 2324170 (1943-07-01), Ofstie
patent: 3006558 (1961-10-01), Jacobs
patent: 3178119 (1965-04-01), Thorson
patent: 3586244 (1971-06-01), Johnson

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