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Filing Detail
Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000950123-10-105946
Filing Date
2010-11-16
Accepted
2010-11-15 21:42:14
Documents
1
Effectiveness Date
2010-11-16

Document Format Files

Seq Description Document Type Size
1 DEFA14A l41174adefa14a.htm DEFA14A 90543
  Complete submission text file 0000950123-10-105946.txt   91854
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.: 101194865
SIC: 3825 Instruments For Meas & Testing of Electricity & Elec Signals