Sprinkler head

Details Sprinkler head Sprinkler head

1978-08-21

1979-11-06

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D23 34, D2301

Patent

active

D02533642

REFERENCES:
patent: D210457 (1968-03-01), Measo
patent: 696057 (1902-03-01), Lanstrum
patent: 1288123 (1918-12-01), Mowry
patent: 1674480 (1928-06-01), Nelson
patent: 1727111 (1929-09-01), Moore
patent: 2550456 (1951-04-01), De Flon
patent: 2785013 (1957-03-01), Stearns
patent: 3178119 (1965-04-01), Thorson
patent: 3603512 (1971-09-01), Ham

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