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Filing Detail
Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0000913414-04-000280
Filing Date
2004-02-17
Accepted
2004-02-17 12:05:11
Documents
1

Document Format Files

Seq Description Document Type Size
1 sc13g-keithley12312003.txt SC 13G 53554
  Complete submission text file 0000913414-04-000280.txt   55682
Mailing Address
Business Address 28775 AURORA RD SOLON OH 44139 2162480400
KEITHLEY INSTRUMENTS INC (Subject) CIK: 0000054991 (see all company filings)

IRS No.: 340794417 | State of Incorp.: OH | Fiscal Year End: 0930
Type: SC 13G | Act: 34 | File No.: 005-37166 | Film No.: 04605544
SIC: 3825 Instruments For Meas & Testing of Electricity & Elec Signals

Mailing Address 45 FREMONT ST SAN FRANCISCO CA 94105
Business Address 45 FREMONT ST 17TH FL SAN FRANCISCO CA 94105 4155972639
BARCLAYS GLOBAL INVESTORS NA /CA/ (Filed by) CIK: 0000913414 (see all company filings)

IRS No.: 943112180 | State of Incorp.: CA | Fiscal Year End: 1231
SIC: 0000