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Filing Detail
Form SC 13G - Statement of acquisition of beneficial ownership by individuals:
SEC Accession No. 0000080255-04-000208
Filing Date
2004-02-09
Accepted
2004-02-09 16:00:13
Documents
1

Document Format Files

Seq Description Document Type Size
1 MKSI AS OF 12/31/2003 mksi.txt SC 13G 8420
  Complete submission text file 0000080255-04-000208.txt   10465
Mailing Address P.O. BOX 89000 BALTIMORE MD 21289
Business Address 100 EAST PRATT ST BALTIMORE MD 21202 (410)345-
PRICE T ROWE ASSOCIATES INC /MD/ (Filed by) CIK: 0000080255 (see all company filings)

IRS No.: 520556948 | State of Incorp.: MD | Fiscal Year End: 1231
SIC: 6200 Security & Commodity Brokers, Dealers, Exchanges & Services

Mailing Address SIX SHATTUCK ROAD ANDOVER MA 01810
Business Address SIX SHATTUCK RD ANDOVER MA 01810 9789752350
MKS INSTRUMENTS INC (Subject) CIK: 0001049502 (see all company filings)

IRS No.: 042277512 | State of Incorp.: MA | Fiscal Year End: 1231
Type: SC 13G | Act: 34 | File No.: 005-58011 | Film No.: 04578137
SIC: 3823 Industrial Instruments For Measurement, Display, and Control