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Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0000902219-97-000884
Filing Date
1997-12-10
Accepted
1997-12-10 00:00:00
Documents
1
SROs
NYSE

Document Format Files

Seq Description Document Type Size
1 13G FILING SC 13G 7386
  Complete submission text file 0000902219-97-000884.txt   9285
Mailing Address
Business Address 65 GROVE ST WATERTOWN MA 02172 6179262500
IONICS INC (Subject) CIK: 0000052466 (see all company filings)

IRS No.: 042068530 | State of Incorp.: MA | Fiscal Year End: 1231
Type: SC 13G | Act: 34 | File No.: 005-11045 | Film No.: 97735190
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 LLP (Filed by) CIK: 0000902219 (see all company filings)

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