Spiral wing shaft for mixers

Details Spiral wing shaft for mixers Spiral wing shaft for mixers

2005-12-20

2005-12-20

Siegel, Mitchell (Department: 2912)

Machines not elsewhere specified

Agricultural or construction machinery

Concrete, asphalt, or soil mixer

Design Patent

active

D0513013

CLAIM:
The ornamental design for a spiral wing shaft for mixers, as shown and described.

REFERENCES:
patent: 912125 (1909-02-01), Hassam
patent: 1699230 (1929-01-01), Eberling
patent: 2495379 (1950-01-01), McIntosh
patent: 3327634 (1967-06-01), Whiteman, Jr.
patent: 3372910 (1968-03-01), Estis
patent: 3897723 (1975-08-01), Lucy et al.
patent: 4157872 (1979-06-01), Davido, Sr.
patent: 4188127 (1980-02-01), Pawley
patent: 4448536 (1984-05-01), Strong
patent: D287132 (1986-12-01), Forbes
patent: 6149291 (2000-11-01), Christenson
patent: 197 03 495 (1999-01-01), None

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