Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1976-02-26
1977-05-31
Spangler, Robert C.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02445310
REFERENCES:
patent: D199098 (1964-09-01), Tyler
patent: D238655 (1976-02-01), McKinney et al.
patent: D240798 (1976-08-01), Smith
patent: D241543 (1976-09-01), Tada
patent: 3061202 (1962-10-01), Tyler
patent: 3103032 (1963-09-01), Brenne
patent: 3685739 (1972-08-01), Vanier
Colgate-Palmolive Company
Spangler Robert C.
Sylvester Herbert S.
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