20. September 2019 - Patent: CN110264980 (A) ― 2019-09-20

Last Updated on 29. October 2021

“Double-sided hammering tone-tuning handpan and manufacturing process thereof”

by Lyu Le

https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190920&DB=EPODOC&CC=CN&NR=110264980A