Combination lock

Description

FIG. 1 is a perspective view of a combination lock showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
2772555 December 1956 Smith
3966033 June 29, 1976 Doo
4020662 May 3, 1977 Fowler
4167222 September 11, 1979 El Bindari
4598562 July 8, 1986 Freeman
Other references
  • "Keyless Pushbutton Combination Door Lock", Lock No. 101, p. 3, Preso brochure, Mar. 1967.
Patent History
Patent number: D289730
Type: Grant
Filed: Oct 5, 1984
Date of Patent: May 12, 1987
Inventor: Jimmy Hsieh (Tai Nan City)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Law Firm: Saidman, Sterne, Kessler & Goldstein
Application Number: 6/657,816
Classifications
Current U.S. Class: D/8330; D/8343