Combined ruler and letter opener
Description
FIG. 1 is a perspective view of a combined ruler and letter opener with a letter-opener showing my new design,
FIG. 2 is a front elevational view thereof,
FIG. 3 is a right end elevational view thereof,
FIG. 4 is a left end elevational view thereof,
FIG. 5 is a top plan view thereof,
FIG. 6 is a rear elevational view thereof; and
FIG. 7 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
D92791 | July 1934 | Burgess |
D107570 | December 1937 | Erk |
D141490 | June 1945 | Henderson |
D169226 | March 1953 | Sandberg |
D172945 | September 1954 | Baker |
D177697 | May 1956 | Salm |
D235091 | May 1975 | Daenen |
D245109 | July 19, 1977 | Yoshioka |
D252973 | September 25, 1979 | Bateman |
418870 | January 1890 | Hazlett |
1453900 | May 1923 | Ahearn |
431476 | June 1948 | ITX |
- Grammes Cat.-Advertising Specialties .COPYRGT.1939, p. 20, Letter Opener-Ruler, 2nd from top.
Patent History
Patent number: D261612
Type: Grant
Filed: Aug 13, 1979
Date of Patent: Nov 3, 1981
Inventor: Walter Henkels (5142 Huckelhoven)
Primary Examiner: Nelson C. Holtje
Law Firm: Diller, Ramik & Wight
Application Number: 6/65,971
Type: Grant
Filed: Aug 13, 1979
Date of Patent: Nov 3, 1981
Inventor: Walter Henkels (5142 Huckelhoven)
Primary Examiner: Nelson C. Holtje
Law Firm: Diller, Ramik & Wight
Application Number: 6/65,971
Classifications