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Filing Detail
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0000080255-05-000276
Filing Date
2005-02-11
Accepted
2005-02-11 16:26:18
Documents
1

Document Format Files

Seq Description Document Type Size
1 MKSI AS OF 12/31/2004 mksi13gadec04.txt SC 13G/A 8419
  Complete submission text file 0000080255-05-000276.txt   10520
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
Type: SC 13G/A
SIC: 6200 Security & Commodity Brokers, Dealers, Exchanges & Services

Mailing Address 90 INDUSTRIAL WAY WILMINGTON MA 01887
Business Address 90 INDUSTRIAL WAY WILMINGTON MA 01887 978-284-4000
MKS INSTRUMENTS INC (Subject) CIK: 0001049502 (see all company filings)

IRS No.: 042277512 | State of Incorp.: MA | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-58011 | Film No.: 05599055
SIC: 3823 Industrial Instruments For Measurement, Display, and Control