Tube

Details Tube Tube

1998-03-23

2000-07-04

Douglas, Alan P.

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Fitting

D25125, 2301

Patent

active

D04276698

REFERENCES:
patent: D25120 (1896-02-01), Livor
patent: D244942 (1977-07-01), Bobrovniczky
patent: 2298249 (1942-10-01), Brown, Jr.
patent: 2895508 (1959-07-01), Drake
patent: 3002729 (1961-10-01), Welsh
patent: 3228053 (1966-01-01), Horton et al.
patent: 3439586 (1969-04-01), Holtan et al.
patent: 3726109 (1973-04-01), Mortensen
patent: 4153260 (1979-05-01), Joyner
patent: 5048572 (1991-09-01), Levine

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