#DESTRAIN — How To Make 'Em Blossom-Out

 

Marlon Brando, US6812392B2 [2004]

Drumhead tensioning device and method

https://patents.google.com/patent/US6812392B2/en

Benjamin Franklin

Glass Armonica

https://fi.edu/en/science-and-education/collection/benjamin-franklins-glass-armonica

[Construction by Charles James, 1761 — made from Franklin's instructions]

China, CN202049728U [2011] 

https://patents.google.com/patent/CN202049728U/en