Patents Assigned to Joseph Nigrelli
  • Patent number: 4905547
    Abstract: A master key or wrench for the removal of expensive automobile wheel cover lock bolts or lock nuts is disclosed. The master key is configured to engage easily with any of the diverse shapes of commercial lock bolts and nuts commonly used to secure wheel covers against removal by means of ordinary tools.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: March 6, 1990
    Assignee: Joseph Nigrelli
    Inventor: Joseph Nigrelli