Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1975-08-27
1977-02-08
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2304
Patent
active
D02433338
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patent: 3701478 (1972-10-01), Tada
patent: 3768734 (1973-10-01), Anderson, Jr. et al.
patent: 3797749 (1974-03-01), Tada
patent: 3897006 (1975-07-01), Tada
patent: 3913841 (1975-10-01), Tada
patent: 3927834 (1975-12-01), Tada
patent: D199098 (1964-09-01), Tyler
patent: D226712 (1973-04-01), Tada
Flynn Robert D.
Largen James R.
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