Gas regulator

Details Gas regulator Gas regulator

1994-08-22

1997-06-10

Zarfas, Louis S.

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Valve or body therefor

1501

Patent

active

D03798453

REFERENCES:
patent: D115780 (1939-07-01), Carnes
patent: D154624 (1949-07-01), Nieseman et al.
patent: D168641 (1953-01-01), St. Clair et al.
patent: D181319 (1957-10-01), Schutmaat
patent: 360890 (1887-04-01), Kieley
patent: 408873 (1889-08-01), Crozier
Exhibit 1--An 8 1/2.times.14" sheet of 6 colored photographs of apparatus previously sold to the public Admitted prior art.
Exhibit 2--An 8 1/2.times.14" sheet of 6 colored photographs of apparatus previously sold to the public Admitted prior art.
Exhibit 3--An 8 1/2.times.14" sheet of 5 colored photographs of modified apparatus sold to the public Admitted prior art.
Exhibit 4--An 8 1/2.times.14" sheet of 5 colored photographs of modified apparatus sold to the public Admitted prior art.
Exhibit 5--An 8 1/2.times.14" sheet of 5 colored photographs of modified apparatus sold to the public Admitted prior art.

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