Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1977-01-17
1978-09-19
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02495422
REFERENCES:
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patent: D232551 (1974-08-01), Grover
patent: 2686596 (1954-08-01), Storms
patent: 2781912 (1957-02-01), Newcum
patent: 3522882 (1970-08-01), Dykes
patent: 3770129 (1973-11-01), Brumfield et al.
patent: 4013072 (1977-03-01), Jess
patent: 4018687 (1977-04-01), Zahour
Aldridge Albert Horace
Pizzey Michael
Creighton Wray James
Largen James R.
Thomas Ness Limited
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