Rotary impeller

Details Rotary impeller Rotary impeller

2002-03-28

2002-12-31

Lichtenstein, Lisa (Department: 2911)

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

CD23S379000

Design Patent

active

D0468009

CLAIM:
The ornamental design for a rotary impeller, as shown and described.

REFERENCES:
patent: 4930981 (1990-06-01), Walker
patent: D366935 (1996-02-01), Arthun et al.
patent: 6334705 (2002-01-01), Weetman

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