Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000009015-01-000071
Filing Date
2001-02-09
Accepted
2001-02-09 00:00:00
Documents
1

Document Format Files

Seq Description Document Type Size
1 13G/A FORM 0001.txt SC 13G/A 5373
  Complete submission text file 0000009015-01-000071.txt   7177
Mailing Address
Business Address ONE MEMORIAL DRIVE CAMBRIDGE MA 02142-1300 6177237540
BABSON DAVID L & CO INC (Filed by) CIK: 0000009015 (see all company filings)

EIN.: 004105478 | State of Incorp.: MA | Fiscal Year End: 1231

Mailing Address LAUREL BROOK ROAD MIDDLEFIELD CT 06455
Business Address LAUREL BROOK RD MIDDLEFIELD CT 06455 8603478506
ZYGO CORP (Subject) CIK: 0000730716 (see all company filings)

EIN.: 060864500 | State of Incorp.: DE | Fiscal Year End: 0630
Type: SC 13G/A | Act: 34 | File No.: 005-36073 | Film No.: 1531619
SIC: 3827 Optical Instruments & Lenses