Grain hopper

Material or article handling equipment – Conveying – lifting – or transferring article

Design Patent

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Details

CD15S013000

Design Patent

active

29261179

CLAIM:
The ornamental design for a grain hopper, as shown and described.

REFERENCES:
patent: D161852 (1951-02-01), Meeder
patent: 2612294 (1952-09-01), Dorschner
patent: 2806074 (1957-09-01), Duncklee et al.
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patent: D279323 (1985-06-01), Spenceley
patent: 4740130 (1988-04-01), Prins
patent: D335293 (1993-05-01), Pingry et al.
patent: 5409344 (1995-04-01), Tharaldson
patent: D368914 (1996-04-01), Pink et al.
patent: 5655872 (1997-08-01), Plotkin
patent: D402670 (1998-12-01), Becker
patent: D431889 (2000-10-01), Jansen et al.
patent: D478543 (2003-08-01), Truan et al.

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