Drill head

Details Drill head Drill head

2000-10-16

2001-09-04

Asch, Jeffrey (Department: 2913)

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

Design Patent

active

D0447399

CLAIM:
The ornamental design for a drill head, as shown and described.

REFERENCES:
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patent: 5511912 (1996-04-01), Ellerbrock
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patent: 5643062 (1997-07-01), Joseph et al.
patent: 6153838 (2000-11-01), Wadge
patent: 6170579 (2001-01-01), Wadge
patent: 6176322 (2001-01-01), Wadge
patent: 6181032 (2001-01-01), Marshall et al.
patent: 6206107 (2001-03-01), Wadge

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