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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D29 99

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D02733196

REFERENCES:
patent: D215052 (1969-08-01), Evans
patent: D251734 (1979-05-01), McCaw et al.
patent: D263163 (1982-02-01), Olde
patent: 2565572 (1951-08-01), Pangborn
patent: 3129993 (1964-04-01), Ross
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
Crawford Fitting Co. Quick--Connects Brochure .COPYRGT.1973, pp. 1, 4, 6.
Hansen Mfg. Company, QUICK Connective Couplings Brochure, .COPYRGT.1958, cover & p. 11.
Clover Industries Inc., Industrial Closures Flyer, cover flyer.
Brookstone Catalog, Peterborough New Hampshire Spring 1978, Examiner Douglas' Catalog Collection.

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