Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1982-03-26
1984-06-26
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02744554
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House & Home, Jun. 1966, p. 128, top left item.
Domestic Engineering, May 1978, p. 64, "Deep-Dish Bathing" item.
Domestic Engineering, Apr. 1979, p. 59, Bathtub item.
Gruber Systems, Inc.
Largen James R.
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