Piercing valve

Details Piercing valve Piercing valve

1984-11-27

1987-03-10

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

Patent

active

D02887088

REFERENCES:
patent: D237883 (1975-12-01), Zetterberg et al.
patent: 3198206 (1965-08-01), O'Brien
patent: 3252474 (1966-05-01), Ehrens et al.
patent: 3252475 (1966-05-01), Jones
patent: 3428075 (1969-02-01), Wagner
patent: 3554217 (1971-01-01), Ehrens et al.
patent: 3973584 (1976-08-01), McKinnon et al.
patent: 3978881 (1976-09-01), Mouranie
patent: 4204559 (1980-05-01), Wagner
patent: 4415000 (1983-11-01), Odmann
patent: 4537214 (1985-08-01), Cowan

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