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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000950123-10-095690
Filing Date
2010-10-25
Accepted
2010-10-25 16:57:27
Documents
2
Effectiveness Date
2010-10-25

Document Format Files

Seq Description Document Type Size
1 DEFA14A l40849dadefa14a.htm DEFA14A 21679
2 GRAPHIC l40849dal4084919.gif GRAPHIC 5521
  Complete submission text file 0000950123-10-095690.txt   30753
Mailing Address
Business Address 28775 AURORA RD SOLON OH 44139 2162480400
KEITHLEY INSTRUMENTS INC (Filer) CIK: 0000054991 (see all company filings)

IRS No.: 340794417 | State of Incorp.: OH | Fiscal Year End: 0930
Type: DEFA14A | Act: 34 | File No.: 001-09965 | Film No.: 101140282
SIC: 3825 Instruments For Meas & Testing of Electricity & Elec Signals