Circle drafting template
Description
FIG. 1 is a plan view of a circle drafting template, showing my new design.
FIG. 2 is an end elevation view thereof.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
| D161570 | January 1951 | Campbell |
| D166118 | March 1952 | O'Connor |
| D167043 | June 1952 | Kintz |
| 1662882 | March 1928 | Clark |
| 2478071 | August 1949 | Agrillo |
| 2933818 | April 1960 | Palmer |
| 3037293 | June 1962 | Yost |
| 1190810 | October 1959 | FRX |
- Arthur Brown & Bro., Inc. Catalog, 7/16/73, p. 146, #375, Large Radius Template.
Patent History
Patent number: D282671
Type: Grant
Filed: Nov 21, 1983
Date of Patent: Feb 18, 1986
Assignee: PTL Engineering (Rochester, MI)
Inventor: John Papsdorf (Rochester, MI)
Primary Examiner: Bernard Ansher
Assistant Examiner: Theodore M. Shooman
Law Firm: Harness, Dickey & Pierce
Application Number: 6/554,911
Type: Grant
Filed: Nov 21, 1983
Date of Patent: Feb 18, 1986
Assignee: PTL Engineering (Rochester, MI)
Inventor: John Papsdorf (Rochester, MI)
Primary Examiner: Bernard Ansher
Assistant Examiner: Theodore M. Shooman
Law Firm: Harness, Dickey & Pierce
Application Number: 6/554,911
Classifications
Current U.S. Class:
Curve Template Or French Curve (D19/39);
Template Or Comparator Gauge (6) (D10/64)
