Set-square
Description
FIG. 1 is a bottom plan view of a set-square showing our new design;
FIG. 2 is a right side elevational;
FIG. 3 is a top plan view;
FIG. 4 is a left side elevational;
FIG. 5 is a front elevational view; and
FIG. 6 is a rear elevational view thereof.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
D226226 | January 1973 | Hogland |
D237364 | October 1975 | Hoagland |
D237693 | November 1975 | Hoagland |
1111174 | September 1914 | Ostringer |
2752685 | July 1956 | Zauner |
3462846 | August 1969 | Goerz |
3473228 | October 1969 | Hortmann et al. |
527682 | July 1956 | CAX |
656271 | September 1963 | ITX |
8910848 | November 1989 | WOX |
Patent History
Patent number: D313762
Type: Grant
Filed: May 25, 1988
Date of Patent: Jan 15, 1991
Inventors: Keith W. Chan (Taikoo Shing), Yu S. Man (Taikoo Shing), Eileen Pau Pui-Fun (Taikoo Shing), Ivy Ma Shiu-Ping (Taikoo Shing)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Antoine D. Davis
Law Firm: Burns, Doane, Swecker & Mathis
Application Number: 7/198,507
Type: Grant
Filed: May 25, 1988
Date of Patent: Jan 15, 1991
Inventors: Keith W. Chan (Taikoo Shing), Yu S. Man (Taikoo Shing), Eileen Pau Pui-Fun (Taikoo Shing), Ivy Ma Shiu-Ping (Taikoo Shing)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Antoine D. Davis
Law Firm: Burns, Doane, Swecker & Mathis
Application Number: 7/198,507
Classifications