Exhaust switching unit

Details Exhaust switching unit Exhaust switching unit

2000-01-24

2001-07-31

Siegel, Mitchell (Department: 2912)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Air treatment

Design Patent

active

D0445886

CLAIM:
The ornamental design for an exhaust switching unit, as shown and described.

REFERENCES:
patent: D. 83232 (1931-02-01), McClintock
patent: D. 303854 (1989-10-01), Linton
patent: 1975316 (1934-10-01), Ferris
patent: 6082993 (2000-07-01), O'Leary

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