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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000902219-04-000787
Filing Date
2004-02-12
Accepted
2004-02-12 15:15:37
Documents
1

Document Format Files

Seq Description Document Type Size
1 DOC ONE filing.txt SC 13G/A 11029
  Complete submission text file 0000902219-04-000787.txt   13116
Mailing Address 25701 SCIENCE PARK DR CLEVELAND OH 44122
Business Address 25701 SCIENCE PARK DR CLEVELAND OH 44122-7313 2164643400
LAMSON & SESSIONS CO (Subject) CIK: 0000057497 (see all company filings)

IRS No.: 340349210 | State of Incorp.: OH | Fiscal Year End: 0101
Type: SC 13G/A | Act: 34 | File No.: 005-19528 | Film No.: 04590736
SIC: 3640 Electric Lighting & Wiring Equipment

Mailing Address 75 STATE STREET BOSTON MA 02109
Business Address 75 STATE STREET BOSTON MA 02109 6179515000
WELLINGTON MANAGEMENT CO LLP (Filed by) CIK: 0000902219 (see all company filings)

IRS No.: 042683227 | State of Incorp.: MA | Fiscal Year End: 1231
SIC: 0000