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The ornamental design for an orthoptic therapy bar with prisms, substantially as shown and described. |
FIG. 1 is a perspective view of a bar with prisms, embodying my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a side view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is an end view thereof;
FIG. 6 is a perspective view of a second embodiment of my new design;
FIG. 7 is a front view thereof;
FIG. 8 is a perspective view of a third embodiment of my new design; and
FIG. 9 is a front view thereof.
Adams, Anthony J., Jampolsky, Arthur, Spitzberg, Larry A., Kapash, Richard J., Flom, Merton C.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Oct 09 1975 | Optical Sciences Group, Inc. | (assignment on the face of the patent) | / | |||
Mar 31 1983 | OPTICAL SCIENCES GROUP, INC OSG A ORP OF CA | MINNESOTA MINING AND MANUFACTURING COMPANY, 3M CENTER ST PAUL, MN 55144 3M A CORP OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 004131 | /0956 |
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