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The ornamental design for a collar screw, as shown and described. |
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FIG. 1 is a front elevation view of a collar screw showing my new design;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Feb 03 1997 | PALAU DOMINGUEZ, RAMON | MIKALOR, S A | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 008435 | /0531 | |
| Feb 10 1997 | Mikalor, S.A. | (assignment on the face of the patent) | / |
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