Piano mat
The broken lines in the figures illustrate portions of the piano mat that form no part of the claimed design.
Claims
The ornamental design for a piano mat, as shown and described.
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Type: Grant
Filed: Oct 12, 2019
Date of Patent: Mar 3, 2020
Inventor: Chunyi Yang (Guangdong)
Primary Examiner: R. Johnson
Application Number: 29/709,256