Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1978-09-27
1979-10-30
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02532980
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patent: D221337 (1971-08-01), Price
patent: D221650 (1971-08-01), Gruber
patent: 1939803 (1933-12-01), Cataldi
patent: 3151811 (1964-10-01), Hruby, Jr.
patent: 3490694 (1970-01-01), Ashby
Institutions, Nov. 1938, p. 184, "Caterer's Equipment Company" advertisement.
Laff Charles A.
Largen James R.
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