Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1978-02-27
1980-01-01
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D23 6, D2301
Patent
active
D02538423
REFERENCES:
patent: D184373 (1959-02-01), Rider
patent: 921205 (1909-05-01), Cramer
patent: 1401176 (1921-12-01), Miller
patent: 1801459 (1931-04-01), Slauter
patent: 3586244 (1971-06-01), Johnson
Addison Carl E.
Comes Rocky J.
Fishburn Claude A.
Largen James R.
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