Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1976-07-19
1977-06-14
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02446936
REFERENCES:
patent: D195807 (1963-07-01), Goldtrap
patent: D206850 (1967-01-01), Schoepe
patent: D208185 (1967-07-01), McLarty
patent: D214050 (1969-05-01), Hudson
patent: D236116 (1975-07-01), Schoepe
patent: 3194070 (1965-07-01), Grant
patent: 3554219 (1971-01-01), Hudson
patent: 3584644 (1971-06-01), Morken
patent: 3693649 (1972-09-01), Gordon et al.
Largen James R.
Mahoney Thomas P.
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