Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1981-01-30
1983-09-20
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02706571
REFERENCES:
patent: D145085 (1946-06-01), Isenberg
patent: D145538 (1946-09-01), Richards
patent: D148892 (1948-03-01), Swimmer
patent: D170447 (1953-09-01), Caird
patent: D177354 (1956-04-01), Wagler
patent: D180486 (1957-06-01), Koeppel
patent: D207440 (1967-04-01), Bucknell et al.
patent: D225736 (1973-01-01), Mango et al.
patent: D251679 (1979-04-01), Kwan
Clivio Franco
Raffler Dieter
Gardena Kress & Kastner GmbH
Largen James R.
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