Grade-measuring 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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29260629

CLAIM:
The ornamental design for a grade-measuring shovel, as shown and described.

REFERENCES:
patent: 630924 (1899-08-01), Pickens
patent: 1983815 (1934-12-01), Schmiett
patent: 2896993 (1959-07-01), Pollock
patent: D242520 (1976-11-01), Nollar
patent: 5820183 (1998-10-01), Marcus
patent: 6105293 (2000-08-01), Eason et al.
patent: D516881 (2006-03-01), Conaway et al.

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