13F-HR | SEC Filings Hub

Filing metadata

Accession number: 0001140361-18-020814
Form type: 13F-HR
Filer: BERKSHIRE ASSET MANAGEMENT LLC/PA
CIK: CIK 949012
Filed: May 01, 2018
Reporting period: Mar 31, 2018
Description: Institutional holdings

Documents

0001140361-18-020814-index.htm

Complete submission

0001140361-18-020814.txt

directory listing

Filed by

BERKSHIRE ASSET MANAGEMENT LLC/PA