Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1978-08-30
1979-11-06
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2302
Patent
active
D02533669
REFERENCES:
patent: D51506 (1917-11-01), Miyahara
patent: D198257 (1964-05-01), Kerns et al.
patent: D206143 (1966-11-01), Jacuzzi
patent: D216119 (1969-11-01), Kaiser
patent: 2087183 (1937-07-01), Davock
patent: 3752156 (1973-08-01), Wack
Largen James R.
Seiler Jerry R.
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