Teaching aid

D0924322 ยท 2021-07-06

Assignee

Inventors

Cpc classification

International classification

Abstract

Claims

The ornamental design for a teaching aid, as shown and described.

Description

(1) The FIGURE is a front view of a teaching aid, showing our new design.

(2) In the FIGURE, the teaching aid is made from a substantially flat substrate that has no appreciable thickness.

(3) The broken line showing the teaching aid forms no part of the claimed design.