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The ornamental design for a lens block, as shown. |
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FIG. 1 is a perspective view of a lens block showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a back elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof; and
FIG. 6 is a side elevational view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Mar 20 1981 | NOBLE, HOWARD E JR | Cole National Corporation | ASSIGNMENT OF ASSIGNORS INTEREST | 003892 | /0455 | |
| Jul 10 1981 | Cole National Corporation | (assignment on the face of the patent) | / | |||
| Nov 29 1986 | COLE NATIONAL CORPORATION, A CORP OF OH | COLE VISION CORPORATION, A CORP OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 004648 | /0974 |
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