30. May 2003 - Hangblog: PANArt patent is published

Last Updated on 12. October 2021

PANArt patent is published (filed already 1998):„Production of a steel pan instrument comprises deep drawing a section of a steel sheet forming a sheet membrane with a bulge, hardening the sheet membrane and joining the sheet membrane with a cylindrical or quasi-cylindrical casing“.

Source: https://www.hangblog.org/patents-trademarks-designs/