Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0000350440-05-000021
Filing Date
2005-02-11
Accepted
2005-02-11 12:17:26
Documents
1

Document Format Files

Seq Description Document Type Size
1 12/31/2004 13G FILING mattson.txt SC 13G 8788
  Complete submission text file 0000350440-05-000021.txt   10753
Mailing Address ONE BANKERS TRUST PL 100 PARK AVENUE 8TH FLOOR NEW YORK NY 10017
Business Address 100 PARK AVENUE - 8TH FLOOR NEW YORK NY 10006 2124880200
SELIGMAN J & W & CO INC /NY/ (Filed by) CIK: 0000350440 (see all company filings)

EIN.: 133043476 | State of Incorp.: NY | Fiscal Year End: 1231
Type: SC 13G
SIC: 0000

Mailing Address
Business Address 2800 BAYVIEW DR FREMONT CA 94538 5106575900
MATTSON TECHNOLOGY INC (Subject) CIK: 0000928421 (see all company filings)

EIN.: 770208119 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G | Act: 34 | File No.: 005-46189 | Film No.: 05596372
SIC: 3559 Special Industry Machinery, NEC