13F-HR | SEC Filings Hub

Filing metadata

Accession number: 0001398344-20-002725
Form type: 13F-HR
Filer: BERKSHIRE ASSET MANAGEMENT LLC/PA
CIK: CIK 949012
Filed: Feb 12, 2020
Reporting period: Dec 31, 2019
Description: Institutional holdings

Documents

0001398344-20-002725-index.htm

Complete submission

0001398344-20-002725.txt

directory listing

Filed by

BERKSHIRE ASSET MANAGEMENT LLC/PA