SC 13G/A | SEC Filings Hub

Filing metadata

Accession number: 0001105806-10-000004
Form type: SC 13G
Filer: KEITHLEY INSTRUMENTS INC
CIK: CIK 54991
Filed: Mar 08, 2010
Reporting period: —
Description: Passive 5%+ stake

Documents

0001105806-10-000004-index.htm

Complete submission

0001105806-10-000004.txt

directory listing

Filed by

KEITHLEY INSTRUMENTS INC