Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1978-09-29
1980-07-15
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D 9220, D2304
Patent
active
D02559285
REFERENCES:
patent: D188614 (1960-08-01), Niclaus
patent: D208023 (1967-07-01), Wilson
patent: D212679 (1968-11-01), Ollier et al.
patent: D213428 (1969-03-01), Batdorf
patent: D234026 (1974-12-01), Wintor
patent: D246052 (1977-10-01), Hatai
patent: 2979268 (1961-04-01), Brun
patent: 3498018 (1970-03-01), Seiferth et al.
patent: 3949524 (1976-04-01), Mickelson
patent: 4145001 (1979-03-01), Weyenberg et al.
Airwick Industries Inc.
Jorda Karl F.
Largen James R.
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