Trench shovel

Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning

Design Patent

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Design Patent

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D0474082

CLAIM:
The ornamental design for a trench shovel, as shown and described.

REFERENCES:
patent: 1518246 (1924-12-01), Brandenburg
patent: D272799 (1984-02-01), Pluss
patent: 4904011 (1990-02-01), Hawk
patent: 5727831 (1998-03-01), Dritlein
patent: D462244 (2002-09-01), Woods
Keller catalog 1986 p. 4; Truperback shovels.

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