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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000898430-07-001359
Filing Date
2007-02-02
Accepted
2007-02-01 20:34:32
Documents
1

Document Format Files

Seq Description Document Type Size
1 SCHEDULE 13G rrd622.htm SC 13G/A 49999
  Complete submission text file 0000898430-07-001359.txt   51868
Mailing Address 1299 OCEAN AVENUE 11TH FLOOR SANTA MONICA CA 90401
Business Address 1299 OCEAN AVE 11TH FLOOR SANTA MONICA CA 90401 3103958005
DIMENSIONAL FUND ADVISORS INC (Filed by) CIK: 0000354204 (see all company filings)

IRS No.: 22370029 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 0000

Mailing Address
Business Address 493 NIXON RD CHESWICK PA 15024 4122742156
TOLLGRADE COMMUNICATIONS INC \PA\ (Subject) CIK: 0001002531 (see all company filings)

IRS No.: 251537134 | State of Incorp.: PA | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-50381 | Film No.: 07574058
SIC: 7385 Services-Telephone Interconnect Systems