1
Daniel L Decker Jr: Parking area level indication device. B & D Manufacturing, Sheridan Ross P C, May 13, 2008: US07370428 (6 worldwide citation)

A potential parking area level indicator is provided that includes a centralized hub with a plurality of arms depending therefrom. Preferably, four arms are provided that are spaced 90 degrees from each other thereby defining two sets of opposing arms. In operation, a driver of an RV would locate th ...


2
Daniel L Decker: Parking Area Level Indication Device. B & D Manufacturing, Sheridan Ross PC, October 25, 2007: US20070245579-A1

A potential parking area level indicator is provided that includes a centralized hub with a plurality of arms depending therefrom. Preferably, four arms are provided that are spaced 90 degrees from each other thereby defining two sets of opposing arms. In operation, a driver of an RV would locate th ...