Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1981-02-09
1984-01-10
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02721759
REFERENCES:
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patent: 2767801 (1956-10-01), Eads
patent: 3595398 (1971-07-01), Cook
patent: 4107043 (1978-08-01), McKinney
patent: 4204960 (1980-05-01), Sugiyama et al.
L.R. & N.R. Gedye Pty. Ltd.
Largen James R.
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