SC 13G | SEC Filings Hub

Filing metadata

Accession number: 0000846087-11-000057
Form type: SC 13G
Filer: TOLLGRADE COMMUNICATIONS INC \PA\
CIK: CIK 1002531
Filed: Feb 14, 2011
Reporting period: Dec 31, 2010
Description: Passive 5%+ stake

Documents

0000846087-11-000057-index.htm

Complete submission

0000846087-11-000057.txt

directory listing

Filed by

TOLLGRADE COMMUNICATIONS INC \PA\