Portable line-boring machine

Description

FIG. 1 is a top, front and right side perspective view of a portable line-boring machine showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a left side elevational view;

FIG. 5 is a top plan view; and,

FIG. 6 is a bottom plan view thereof.

FIG. 1 has been drawn on an enlarged scale with respect to FIGS. 2-6.

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Patent History
Patent number: D329654
Type: Grant
Filed: Feb 28, 1990
Date of Patent: Sep 22, 1992
Inventor: Robert J. Smith (Hoyt Lakes, MN)
Primary Examiner: Donald P. Walsh
Assistant Examiner: Antoine D. Davis
Law Firm: Palmatier & Sjoquist
Application Number: 7/486,196
Classifications
Current U.S. Class: Drilling (7) (D15/132)