Cruciform key blank
FIG. 1 is a front elevational view of a key blank showing my new design, the rear being substantially a mirror image thereof except for the omission of the horizontal groove in the shaft;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a top plan view thereof, the bottom being a mirror image of the top shown herein;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a front elevational view of a key blank showing a second embodiment of my new design, the rear being substantially a mirror image thereof except for the omission of the horizontal groove in the shaft;
FIG. 6 is a right side elevational view of FIG. 5;
FIG. 7 is a top plan view of FIG. 5, the bottom being a mirror image of the top shown herein;
FIG. 8 is a left side elevational view of FIG. 5;
FIG. 9 is a front elevational view of a key blank showing a third embodiment of my new design, the rear being substantially a mirror image thereof except for the omission of the horizontal groove in the shaft;
FIG. 10 is a right side elevational view of FIG. 9;
FIG. 11 is a top plan view of FIG. 9, the bottom being a mirror image of the top shown herein;
FIG. 12 is a left side elevational view of FIG. 9.
| D46571 | October 1914 | Mix |
| D93795 | November 1934 | Robertson |
| D114015 | March 1939 | Farrington |
| D165394 | December 1951 | Randall |
| D232806 | September 1974 | Schlage |
| 947913 | February 1910 | Jenkins |
| 1009624 | November 1911 | Arens et al. |
| 250948 | September 1912 | DE2 |
Type: Grant
Filed: May 26, 1977
Date of Patent: Jan 30, 1979
Inventor: Rudolph E. Anderson (San Diego, CA)
Primary Examiner: James M. Gandy
Attorney: Henri J. A. Charmasson
Application Number: 5/800,738
International Classification: D0807;
