LEE HERMAN H
Related Filers (2)
Ownership (8)
SC 13G/A
Wednesday, 1/18/2012
Clearfield, Inc.: Major Shareholders
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Thursday, 2/3/2011
Clearfield, Inc.: Major Shareholders
SC 13G
Wednesday, 12/16/2009
Clearfield, Inc.: Major Shareholders
SC 13G/A
Friday, 2/13/1998
NORTHERN TECHNOLOGIES INTERNATIONAL CORP: Major Shareholders
SC 13D/A
Wednesday, 12/17/1997
APA OPTICS INC /MN/: Major Shareholders
SC 13D
Thursday, 12/12/1996
APA OPTICS INC /MN/: Major Shareholders
SC 13G
Monday, 11/18/1996
NORTHERN TECHNOLOGIES INTERNATIONAL CORP: Major Shareholders
SC 13G/A
Monday, 11/18/1996
NORTHERN TECHNOLOGIES INTERNATIONAL CORP: Major Shareholders