Patents Assigned to Phelps Time Recording Lock Corporation
  • Lock
    Patent number: 3971239
    Abstract: A lock is provided having a cover and a casing in which the cover is normally removable from the lock. The casing has an opening to receive a bolt therethrough, and means on the cover to engage the bolt whereby the cover cannot be removed from the casing when the bolt is in its advanced position.
    Type: Grant
    Filed: February 7, 1975
    Date of Patent: July 27, 1976
    Assignee: Phelps Time Recording Lock Corporation
    Inventor: Stanley Lavis