CHANGE-MATIC
Filed: July 19, 1971
LOCKS OF THE TYPE IN WHICH THE SPLIT SPRING-BIASED TUMBLERS ARE ARRANGED IN AN ANNULAR SERIES AND HAVE ASSOCIATED THEREWITH…
Owned by: CHICAGO LOCK CO.
Serial Number: 72397679
LOCK-OUT
Filed: August 13, 1979
Double Key Axial Split-Pin Tumbler-Type Locks
Owned by: CHICAGO LOCK CO.
Serial Number: 73227127
21
Filed: October 15, 1979
Tamper-Resistant Locks of the Type Wherein the Tumblers Are Arranged in an Annular Series, and Tubular Keys for the Locks…
Owned by: CHICAGO LOCK CO.
Serial Number: 73235037
ACE II
Filed: June 7, 1982
Circular Pin Tumbler Type Locks
Owned by: CHICAGO LOCK CO.
Serial Number: 73367911
ACE II
Filed: June 7, 1982
Circular Pin Tumbler Type Lock
Owned by: CHICAGO LOCK CO.
Serial Number: 73367981
TUBAR
Filed: October 22, 1984
Cylinder Locks Primarily Made of Metal, and Keys for the Locks
Owned by: CHICAGO LOCK CO.
Serial Number: 73505033
2
Filed: October 22, 1984
CYLINDER LOCKS PRIMARILY MADE OF METAL, AND KEYS FOR THE LOCKS
Owned by: CHICAGO LOCK CO.
Serial Number: 73505034
TUBAR
Filed: October 22, 1984
Cylinder Locks Primarily Made of Metal, and Keys for the Locks
Owned by: CHICAGO LOCK CO.
Serial Number: 73505035
