Rotary disc grinding stone

Description

1. Rotary disc grinding stone

1.1 : Perspective view;

1.2 : Front view, with the left, right, and rear views being a mirror image thereof;

1.3 : Top view;

1.4 : Bottom view;

1.5 : Cross-section view, taken along the line A-A in reproduction 1.7;

1.6 : Cross-section view, taken along the line B-B in reproduction 1.7;

1.7 : Reference view.

The broken lines show portions of a rotary disc grinding stone which form no part of the claimed design.

Claims

The ornamental design for a rotary disc grinding stone, as shown and described.