Electric drilling machine

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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D0447030

CLAIM:
The ornamental design for an electric drilling machine, as shown and described.

REFERENCES:
patent: D. 295824 (1988-05-01), Hoshino et al.
patent: D. 310470 (1990-09-01), Tohdoh
patent: D. 364790 (1995-12-01), Duennes
patent: D. 437757 (2001-02-01), Thomson et al.
patent: D. 438076 (2001-02-01), Wikle et al.
patent: 5829931 (1998-11-01), Doumani

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