Double-layer 20-key kalimba
Description
Claims
The ornamental design for a double-layer 20-key kalimba, as shown and described.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
D217641 | May 1970 | Pavia |
D222813 | January 1972 | Wilson |
3961553 | June 8, 1976 | Schorr |
D688729 | August 27, 2013 | Trinca |
D768231 | October 4, 2016 | Kirsh |
20090217802 | September 3, 2009 | Saragosa |
03174195 | October 1991 | JP |
Patent History
Patent number: D920424
Type: Grant
Filed: Apr 29, 2020
Date of Patent: May 25, 2021
Inventor: Weili Lin (Guangdong)
Primary Examiner: R. Johnson
Application Number: 29/733,129
Type: Grant
Filed: Apr 29, 2020
Date of Patent: May 25, 2021
Inventor: Weili Lin (Guangdong)
Primary Examiner: R. Johnson
Application Number: 29/733,129
Classifications
Current U.S. Class:
Piano Or Cabinet Therefor (D17/7)