Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1980-02-08
1982-10-19
Lucas, Susan J.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D26 51, D26 76, D2303, D2605
Patent
active
D02665786
REFERENCES:
patent: D122236 (1940-08-01), Scribner
patent: D168974 (1953-03-01), Spaulding
patent: D173255 (1954-10-01), Brooks et al.
patent: D186129 (1959-09-01), Spaulding
patent: 2946880 (1960-07-01), Picha et al.
patent: 3688105 (1972-08-01), Governale
Architectural Record, 3/63, p. 301, "Prismaround", Fluorescent Fixture.
Lucas Susan J.
Markva Neil F.
Zellers Mabel W.
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