Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1984-12-13
1986-08-19
Bullock, B. J.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02852403
REFERENCES:
patent: D151118 (1948-09-01), Borgerson
patent: D163470 (1951-05-01), Nelson
patent: D163471 (1951-05-01), Nelson
patent: D202863 (1965-11-01), Turner
patent: 2563519 (1951-08-01), Egly et al.
patent: 2883116 (1959-04-01), Muench
patent: 3081038 (1963-03-01), Sparks et al.
Lynden Metal Craft "Automatic Rolling Sprinkler"-Hardware Age, 2/12/1959.
Sherman Mfg. "Rainger"-Hardware Age, 9/22/1960.
Chow Ho
Perry Gordon R.
Bullock B. J.
Jet Stream, Inc.
Vinson Brian N.
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