Combined pipe coupler and plug

Details Combined pipe coupler and plug Combined pipe coupler and plug

1990-05-31

1993-06-22

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Fitting

Patent

active

D03366812

REFERENCES:
patent: D186971 (1959-12-01), Chakine
patent: D205276 (1966-07-01), Kort
patent: D240428 (1976-07-01), Hoffman
patent: D257057 (1980-09-01), Logsdon
patent: D262181 (1981-12-01), Hardy
patent: 2783771 (1957-03-01), Thomas
patent: 3490177 (1976-01-01), Perrion
patent: 3860135 (1975-01-01), Yung et al.
patent: 4060100 (1977-11-01), Miller
patent: 4065035 (1977-12-01), Eissler
patent: 4123035 (1978-10-01), Boudreau
patent: 4706841 (1987-11-01), Grajek

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