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Inventor profile of:

David John

City:

Mesa, Arizona

Country:

United States

Published Applications:

2

Last publication date:

2016-03-24

Recent patent applications by John David

David John from Mesa, US has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2016-03-24

US20160086587A1

Musical instrument valve system

#2 | 2009-07-14

US11740802

Brass-wind musical instrument mouthpiece

InventorID:

1484283 ⎘