Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1977-11-30
1979-03-20
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
D2301
Patent
active
D02513811
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patent: D228657 (1973-10-01), Anderson
patent: D241543 (1976-09-01), Tada
patent: D242351 (1976-11-01), Tada
patent: D243180 (1977-01-01), Federico et al.
patent: D243333 (1977-02-01), Tada
patent: D247366 (1978-02-01), Jones et al.
patent: 3701478 (1972-10-01), Tada
patent: 3797749 (1974-03-01), Tada
patent: 3927834 (1975-12-01), Tada
ASL/Airflow Limited
Largen James R.
Waters Eric H.
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