Nut-Lock.
Description:
Patent for improvements in nut-locks, "wherein a ratchet and pawl is employed to prevent retrograde movement of the nut after it has once been turned up into the desired position." (Lines 12-15) Includes instructions and illustrations.
Date:
January 12, 1892
Creator:
Magee, William L.
Item Type:
Refine your search to only
Patent