Connector for air-breathing apparatus

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified

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D02733200

REFERENCES:
patent: D215052 (1969-08-01), Evans
patent: 2962688 (1960-11-01), Werner
patent: 3238943 (1966-03-01), Holley
patent: 3433222 (1969-03-01), Pinto
patent: 3513849 (1970-05-01), Vaillancourt et al.
patent: 3781941 (1974-01-01), MacFarland
patent: 3995626 (1976-12-01), Pearce, Jr.
patent: 4328798 (1982-05-01), Isaacson
Robertshaw--Fulton Controls Company, Aircraft Valve Ad in Product Engineering 1/19/59, p. 114.
Hansen Quick Connective Couplings Brochure, Reference is Cover Showing.
Crawford Fitting Co. Quick Connect Brochure .COPYRGT.1973 Markad Service Co., p. 4, Stem Protecting Cap.
Fire Engineering, Sep. 1980 Issue, p. 115.

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