Air outlet for round duct

Details Air outlet for round duct Air outlet for round duct

1976-12-27

1979-03-27

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D2304

Patent

active

D02514397

REFERENCES:
patent: 3422888 (1969-01-01), Coleman et al.
patent: 3895567 (1975-07-01), Paul
patent: 3916772 (1975-11-01), Lindestrom et al.
patent: 3918354 (1975-11-01), Lambert

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