Gate valve

Details Gate valve Gate valve

1985-09-03

1988-07-26

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Valve or body therefor

Patent

active

D02969220

REFERENCES:
patent: D179791 (1957-02-01), Williams
patent: D291724 (1987-09-01), Kemp
patent: 3063079 (1962-11-01), Bergman et al.
patent: 3215157 (1965-11-01), Anderson et al.
patent: 3533598 (1970-10-01), Tillman, III
patent: 3557822 (1971-01-01), Chronister
patent: 3889925 (1975-06-01), Brooks
patent: 3929316 (1975-12-01), Guthrie
patent: 4043535 (1977-08-01), Freeman et al.
patent: 4340204 (1982-07-01), Herd
patent: 4588164 (1986-05-01), Kemp

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