Harbor City, California
United States
4
2014-02-04
The entities that hold a legal rights for patent applications filed by inventor Johnston Darrell:
Darrell Johnston from Harbor City, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Beater bracket and variable drive lever system with variable pivot point spring rotor for bass drum foot pedals
#2 | 2013-01-03MOUNTING SYSTEM FOR ACOUSTIC MUSICAL INSTRUMENTS
#3 | 2012-08-09Topside spring tension adjuster for bass drum pedals with variable pivot point spring rotor
#4 | 2012-06-14Beater bracket and variable drive lever system with variable pivot point spring rotor for bass drum foot pedals
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