Description: Patent for improvements in washers by providing a washer with “two pivoted members, which can be swung open to insert the washer without removing the bolt or spoke upon when the washer needed to be replaced.” (Lines 10-13, p. 1) Illustration is included.
Date: October 14, 1913
Creator: Bulter, Joseph F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department