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The ornamental design of an educational aide for teaching physical properties of light, substantially as shown and described. |
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FIG. 1 is a perspective view of the educational aide for teaching physical properties of light showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front plan view thereof;
FIG. 4 is a side plan view thereof;
FIG. 5 is a rear plan view thereof; and
FIG. 6 is a bottom plan view thereof.
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| D978963, | Jul 10 2019 | ERBE ELEKTROMEDIZIN GMBH | Laparoscopy simulator |
| D986321, | Jul 10 2019 | ERBE ELEKTROMEDIZIN GMBH | Laparoscopy simulator |
| Patent | Priority | Assignee | Title |
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jan 28 1975 | Xerox Corporation | (assignment on the face of the patent) | / |
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