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SEC Edgar

AMERICAN SCIENCE & ENGINEERING, INC.

SIC 3844 · X-Ray Apparatus & Tubes & Related Irradiation Apparatus
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AMERICAN SCIENCE & ENGINEERING, INC.

CIK:0000005768|SEC Filings

INDENTURES

EX-4.1
a16-13707_1ex4d1.htm
2016-06-21T00:00:00Z
EX-4.1
a16-13707_1ex4d1.htm
2016-06-21T00:00:00Z
EX-4.1
a14-26502_1ex4d1.htm
2014-12-22T00:00:00Z
EX-4.1
a08-27968_1ex4d1.htm
2008-11-07T00:00:00Z
EX-4.1
a08-20001_1ex4d1.htm
2008-07-25T00:00:00Z
EX-4.1
a08-11854_2ex4d1.htm
2008-04-18T00:00:00Z
EX-4.1
a08-11854_1ex4d1.htm
2008-04-18T00:00:00Z
EX-4.1
a05-20643_1ex4d1.htm
2005-11-21T00:00:00Z
EX-4.1
EX-4.1.txt
1998-12-24T00:00:00Z
EX-4.1
a2141211zex-4_1.htm
2004-08-02T00:00:00Z
EX-4.1
EX-4.1.txt
1997-05-28T00:00:00Z
EX-4.6
a2081487zex-4_6.txt
2002-06-05T00:00:00Z
EX-4.7
a2081487zex-4_7.txt
2002-06-05T00:00:00Z
EX-4.5
a2081487zex-4_5.txt
2002-06-05T00:00:00Z