|
The ornamental design of an educational aide for teaching physical properties of light, substantially as shown and described. |
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.
Patent | Priority | Assignee | Title |
D978963, | Jul 10 2019 | ERBE ELEKTROMEDIZIN GMBH | Laparoscopy simulator |
D986321, | Jul 10 2019 | ERBE ELEKTROMEDIZIN GMBH | Laparoscopy simulator |
Patent | Priority | Assignee | Title |
2155114, |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jan 28 1975 | Xerox Corporation | (assignment on the face of the patent) | / |
Date | Maintenance Fee Events |
Date | Maintenance Schedule |