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The ornamental design for an optical filter prism, as shown. |
FIG. 1 is a front perspective view of an optical filter prism showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a side elevational view thereof;
FIG. 5 is an opposite side elevational view thereof;
FIG. 6 is a rear elevational view thereof; and,
FIG. 7 is a bottom plan view thereof.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Sep 26 1990 | Luminati Ltd., Inc. | (assignment on the face of the patent) | / | |||
Mar 21 1991 | DOWD, DAVID | LUMINATI LTD , INC | ASSIGNMENT OF ASSIGNORS INTEREST | 005640 | /0832 |
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