Patent
   D331933
Priority
Jun 26 1990
Filed
Jun 26 1990
Issued
Dec 22 1992
Expiry
Dec 22 2006
Assg.orig
Entity
unknown
0
9
n/a
The ornamental design for an electric-discharge processing machine, as shown and described.

FIG. 1 is a top, front and left side perspective view of an electric-discharge processing machine showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a top plan view;

FIG. 5 is a left side elevational view; and,

FIG. 6 is a right side elevational view thereof.

Chiang, Chin-Fong

Patent Priority Assignee Title
Patent Priority Assignee Title
3541291,
4387284, Dec 15 1980 VAL-U-TOOL & GAGE COMPANY Electrical discharge machining apparatus
4990737, Feb 08 1988 Fanuc Ltd Initial hole machining device for a wire-cut electric discharge machine
4996762, Oct 28 1987 Nissei Plastics Industrial Co., Ltd. Composite processing machine
5049715, Feb 03 1989 Mitsubishi Denki Kabushiki Kaisha Electric discharge machine
5075530, Jul 23 1990 Multi-head type of electro-discharging machine
5086203, Jun 03 1988 Hitachi Seiko, Ltd. Wire electric discharge machining apparatus
GB2170136,
JP221922,
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