Portable spray arm

Details Portable spray arm Portable spray arm

1981-06-29

1984-04-24

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D32 32

Patent

active

D02736080

REFERENCES:
patent: D230152 (1974-06-01), Froehlke
patent: D242212 (1976-11-01), Parise
patent: D246523 (1979-11-01), Bartlett
patent: D265857 (1982-08-01), Burgoon et al.
patent: 1760274 (1930-05-01), Minor
patent: 1945298 (1934-01-01), Schmidt
patent: 2340945 (1944-02-01), Ellick
patent: 2589020 (1952-03-01), North, Jr.
patent: 3118607 (1964-01-01), Rocher
patent: 3215350 (1965-11-01), Hetrick
patent: 3260465 (1966-07-01), Grumbein

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