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Filing metadata

Accession number: 0001209191-10-026756
Form type: Form 4
Filer: KEITHLEY INSTRUMENTS INC
CIK: CIK 54991
Filed: May 11, 2010
Reporting period: May 10, 2010
Description: Insider transaction

Documents

0001209191-10-026756-index.htm

Complete submission

0001209191-10-026756.txt

directory listing

Filed by

KEITHLEY INSTRUMENTS INC