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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001047469-02-001921
Filing Date
2002-02-12
Accepted
2002-02-12 00:00:00
Documents
1

Document Format Files

Seq Description Document Type Size
1 2001 SCHEDULE 13G/A - INPUT/OUTPUT INC doc1.txt SC 13G/A 5368
  Complete submission text file 0001047469-02-001921.txt   7441
Mailing Address 1299 OCEAN AVENUE 11TH FLOOR SANTA MONICA CA 90401
Business Address 1299 OCEAN AVE 11TH FLOOR SANTA MONICA CA 90401 3103958005
DIMENSIONAL FUND ADVISORS INC (Filed by) CIK: 0000354204 (see all company filings)

IRS No.: 22370029 | State of Incorp.: IL | Fiscal Year End: 1231
SIC: 0000

Mailing Address 11104 W AIRPORT BLVD SUITE 200 STAFFORD TX 77477
Business Address 11104 W AIRPORT BLVD SUITE 200 STAFFORD TX 77477 2819333339
INPUT OUTPUT INC (Subject) CIK: 0000866609 (see all company filings)

IRS No.: 222286646 | State of Incorp.: DE | Fiscal Year End: 0531
Type: SC 13G/A | Act: 34 | File No.: 005-41602 | Film No.: 02538130
SIC: 3829 Measuring & Controlling Devices, NEC