INDUSTRIAL & COMMERCIAL FANS & BLOWERS & AIR PURIFING EQUIP

Latest SC 13G/A SEC Filings
Statement of acquisition of beneficial ownership by individuals: [Amend]

DONALDSON CO INC, SC 13G/A, 2001-01-02
FLANDERS CORP, SC 13G/A, 2000-10-06
ITEQ INC, SC 13G/A, 2000-02-14
ENVIRONMENTAL ELEMENTS CORP, SC 13G/A, 2000-02-10
FLANDERS CORP, SC 13G/A, 2000-02-10
BHA GROUP INC, SC 13G/A, 2000-02-09
GREAT AMERICAN MANAGEMENT & INVESTMENT INC, SC 13G/A, 2000-02-09
MET PRO CORP, SC 13G/A, 2000-02-04
FLANDERS CORP, SC 13G/A, 2000-02-03
CROWN ANDERSEN INC, SC 13G/A, 2000-01-27
MFRI INC, SC 13G/A, 2000-01-26
FLANDERS CORP, SC 13G/A, 1999-07-09
FLANDERS CORP, SC 13G/A, 1999-02-16
GREAT AMERICAN MANAGEMENT & INVESTMENT INC, SC 13G/A, 1999-02-16
BHA GROUP INC, SC 13G/A, 1999-02-10
MET PRO CORP, SC 13G/A, 1999-02-08
MFRI INC, SC 13G/A, 1999-02-02
DONALDSON CO INC, SC 13G/A, 1999-01-08
MIDWESCO FILTER RESOURCES INC /IL, SC 13G/A, 1998-12-18
MFRI INC, SC 13G/A, 1998-07-10
ENVIRONMENTAL ELEMENTS CORP, SC 13G/A, 1998-02-26
BHA GROUP INC, SC 13G/A, 1998-02-19
FLANDERS CORP, SC 13G/A, 1998-02-17
DONALDSON CO INC, SC 13G/A, 1998-02-13
MFRI INC, SC 13G/A, 1998-02-03
MIDWESCO FILTER RESOURCES INC /IL, SC 13G/A, 1998-01-23
DONALDSON CO INC, SC 13G/A, 1998-01-05
MFRI INC, SC 13G/A, 1997-10-10
MFRI INC, SC 13G/A, 1997-02-14
DONALDSON CO INC, SC 13G/A, 1997-02-13
MIDWESCO FILTER RESOURCES INC, SC 13G/A, 1997-01-29
MFRI INC, SC 13G/A, 1997-01-15
DONALDSON CO INC, SC 13G/A, 1997-01-14
DONALDSON CO INC, SC 13G/A, 1996-03-28
DONALDSON CO INC, SC 13G/A, 1996-02-14
AMPCO PITTSBURGH CORP, SC 13G/A, 1996-02-07
AMPCO PITTSBURGH CORP, SC 13G/A, 1995-02-01
DONALDSON CO INC, SC 13G/A, 1995-01-31


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