Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1977-03-15
1980-05-06
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02549280
REFERENCES:
patent: D32498 (1900-04-01), Watson
patent: 3614952 (1971-10-01), Agnellino
patent: 3890655 (1975-06-01), Mathis
patent: 3890656 (1975-06-01), Mathis
patent: 3946449 (1976-03-01), Mathis
patent: 4034428 (1977-07-01), Jacuzzi
Largen James R.
Rieber William K.
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