Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000902219-96-000171
Filing Date
1996-02-12
Accepted
1996-02-12 00:00:00
Documents
1
SROs
NYSE

Document Format Files

Seq Description Document Type Size
1 13G FORM SC 13G/A 5525
  Complete submission text file 0000902219-96-000171.txt   7333
Mailing Address
Business Address 65 GROVE ST WATERTOWN MA 02172 6179262500
IONICS INC (Subject) CIK: 0000052466 (see all company filings)

EIN.: 042068530 | State of Incorp.: MA | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-11045 | Film No.: 96514675
SIC: 3559 Special Industry Machinery, NEC

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

EIN.: 042683227 | State of Incorp.: MA | Fiscal Year End: 1231
SIC: 0000