Patent
   D324224
Priority
Aug 17 1989
Filed
Aug 17 1989
Issued
Feb 25 1992
Expiry
Feb 25 2006
Assg.orig
Entity
unknown
1
6
n/a
The ornamental design for a drill sharpener, as shown and described.

FIG. 1 is a right side elevational view of a drill sharpener showing my new design;

FIG. 2 is a left side elevational view;

FIG. 3 is a front elevational view;

FIG. 4 is a rear elevational view;

FIG. 5 is a top plan view;

FIG. 6 is a bottom plan view; and

FIG. 7 is a top, front and right side perspective view thereof.

Chien, Mu-Yen

Patent Priority Assignee Title
D568132, Sep 13 2006 Choon Nang Electrical Appliance Mfy., Ltd Sharpener for drill bits
Patent Priority Assignee Title
3911629,
4485596, Sep 09 1982 Darex Corporation Twist drill point splitting/web thinning apparatus
4703588, Dec 19 1984 Drill cutting edge grinder
4742648, Nov 21 1984 Drill sharpening tool
4916867, Dec 19 1988 Drill bit sharpener
D311027, Nov 12 1986 John Manufacturing Limited Combined pencil sharpener and holder for writing instruments
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