WC

Walter S. Christopher

CL Chicago Lock: 1 patents #2 of 6Top 35%
Overall (All Time): #4,003,607 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4617813 Lock-picking tool and method of use thereof Robert T. Kriskovich, Robert L. Steinbach 1986-10-21