Blackboard eraser

Description

FIG. 1 is a perspective view;

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 right-side elevational view;

FIG. 6 is a plan view; and,

FIG. 7 is a bottom view.

Referenced Cited
U.S. Patent Documents
D131293 February 1942 Barnes et al.
D152146 December 1948 Eldridge
3618153 November 1971 Coult
4462134 July 31, 1984 Wang
4742594 May 10, 1988 Chen
4941225 July 17, 1990 Liao
Foreign Patent Documents
244898 September 1989 JPX
Patent History
Patent number: D366670
Type: Grant
Filed: Sep 9, 1994
Date of Patent: Jan 30, 1996
Inventor: Sung J. Huh (Kuro-ku, Seoul)
Primary Examiner: Martie Thompson
Law Firm: Burns, Doane, Swecker & Mathis
Application Number: 0/28,229
Classifications
Current U.S. Class: Eraser (8) (D19/53); D/4137