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The ornamental design for a heart valve locking ring, as shown and described. |
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FIG. 1 is a cross-sectional view of a heart valve locking ring, taken along line 1--1 of FIG. 3, with the broken line showing of the heart valve and cloth wrap being for illustrative purposes only and forming no part of the claimed design;
FIG. 2 is a perspective view of the heart valve locking ring;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof; and,
FIG. 5 is a side elevational view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Mar 04 1996 | REIF, THOMAS H | REPUBLIC MEDICAL INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007930 | /0160 | |
| Apr 15 1996 | Republic Medical Inc. | (assignment on the face of the patent) | / |
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