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The ornamental design for combination tonometer and placido disk, as shown and described. |
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FIG. 1 is a top perspective view of a combination tonometer and placido disk showing my new design, and
FIG. 2 is a bottom perspective view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Apr 02 1986 | HENDRICKS, LOREN G | STEINWAY INSTUMENT CO , INC | ASSIGNMENT OF ASSIGNORS INTEREST | 004585 | /0750 | |
| Apr 10 1986 | Lee T., Nordan | (assignment on the face of the patent) | / | |||
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