Drilling machine

Description

FIG. 1 is a top, front and right side perspective of a drilling machine showing my new design;

FIG. 2 is a left side elevational view;

FIG. 3 is a right side elevational view;

FIG. 4 is a rear elevational view;

FIG. 5 is a front elevational view;

FIG. 6 is a top plan view; and,

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D184835 April 1959 Snyder
D277865 March 5, 1985 Chen
D280626 September 17, 1985 Chen
D284970 August 5, 1986 Wolff
D285797 September 23, 1986 Archart
4655649 April 7, 1987 Hzov et al.
Patent History
Patent number: D330558
Type: Grant
Filed: Apr 10, 1990
Date of Patent: Oct 27, 1992
Inventor: Chiou-Fu Chang (Taichung City)
Primary Examiner: Donald P. Walsh
Assistant Examiner: Antoine D. Davis
Law Firm: Cushman, Darby & Cushman
Application Number: 7/506,898
Classifications
Current U.S. Class: Drilling (7) (D15/132)