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Ownership
SC 13D/A
NORTECH SYSTEMS INC
10 Aug 18
SC 13D/A
NORTECH SYSTEMS INC
28 Jun 16
SC 13D/A
NORTECH SYSTEMS INC
17 Jun 16
SC 13D/A
NORTECH SYSTEMS INC
20 Aug 15
SC 13D/A
NORTECH SYSTEMS INC
30 Jul 15
SC 13D/A
NORTECH SYSTEMS INC
7 Jul 15
SC 13D
NORTECH SYSTEMS INC
24 Jun 15
SC 13D
AMERICAN LOCKER GROUP INC
30 Sep 13