David J. Pech

3 Patents

• US125286762026

  Lift Crane with Improved Movable Counterweight

  Manitowoc Crane Companies, LLC

  0 cites
• US121875872025

  Mobile Lift Crane with Variable Position Counterweight

  GROVE U.S. L.L.C.

  0 cites
• US118845222024

  Mobile Lift Crane with Variable Position Counterweight

  GROVE U.S. L.L.C.

  0 cites