0001050925-07-000008 10-Q 5 20070331 20070514 20070514 GSI GROUP INC 0001050925 3523 370856587 DE 1231 10-Q 34 333-43089 07846268 1004 EAST ILLINOIS ST ASSUMPTION IL 62510 2172264421 1004 EAST ILLINOIS ST ASSUMPTION IL 62510 10-Q 1 firstquarter200710q.htm Q1 2007 10-Q EX-31.1 2 ceo_certification.htm CEO CERTIFICATION EX-31.2 3 cfo_certification.htm CFO CERTIFICATION EX-32.1 4 sox_certifcation.htm SOX CERTIFICATION 10-Q 5 firstquarter200710q.pdf PDF COPY OF 1ST QUARTER 2007 FORM 10-Q