Combined air conditioning unit and duct system

Details Combined air conditioning unit and duct system Combined air conditioning unit and duct system

1980-05-19

1982-12-21

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D2304

Patent

active

D02673398

REFERENCES:
patent: D111473 (1938-09-01), Feinberg
patent: D175444 (1955-08-01), Schucker
patent: D204838 (1966-05-01), Allender et al.
patent: 2184354 (1939-12-01), Levine
patent: 2672024 (1954-03-01), McGrath
patent: 2727455 (1955-12-01), Miller
patent: 2835187 (1958-05-01), Schell
patent: 2928333 (1960-03-01), Madison
patent: 3111075 (1963-11-01), Hoyle et al.
patent: 3741290 (1973-06-01), Nenadal
patent: 4315457 (1982-02-01), Lang et al.

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