Sprinkler head

Details Sprinkler head Sprinkler head

1982-05-03

1984-11-20

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D23 34

Patent

active

D02764539

REFERENCES:
patent: D25916 (1896-08-01), Woods
patent: D218824 (1970-09-01), Lawrence, Sr.
patent: D235261 (1975-06-01), Wichman et al.
patent: D239773 (1976-05-01), Wichman et al.
patent: 1203542 (1916-10-01), Hawley
patent: 4351477 (1982-09-01), Choi

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