72167945
May 1, 1963
Oct 20, 1964
BOLTS IN WHICH THE LOCKING ACTION IS OBTAINED BY COATING THE BOLT WITH CHEMICALLY REACTIVE MATERIALS THAT ARE CIRCUMFERENTIALLY SPACED FROM EACH OTHER AND ARE INTERMIXED, SO AS TO POLYMERIZE AND PROVIDE AN ADHESIVE LOCKING BOND, ONLY WHEN THE BOLT IS THREADED INTO A MATING THREADED MEMBER
Firearms