Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1978-03-31
1981-01-27
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02580756
REFERENCES:
patent: D106584 (1937-10-01), Russel
patent: D115780 (1939-07-01), Carnes
patent: D181319 (1957-10-01), Schutmaat
patent: D221430 (1971-08-01), Robinson
patent: 2770252 (1956-11-01), Bass, Jr.
patent: 2775981 (1957-01-01), Zonker
Largen James R.
Marshall Brass Company
Price Peter P.
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