Patents Assigned to Michael J. Roberts, Certified Public Accountant, LLC
  • Publication number: 20140216231
    Abstract: The present invention is an adjustable musical instrument lever that changes the throw, amount of leverage, and amount of resistance the lever incurs when moved. The device also adjusts to accommodate the size of the player's hand. Further, it can be retrofit to many valved musical instruments.
    Type: Application
    Filed: February 3, 2014
    Publication date: August 7, 2014
    Applicant: Michael J. Roberts, Certified Public Accountant, LLC
    Inventor: Michael Olsen