NR - BR 1641 ISSUE 3
Telephone Operators Directory Systems
inactive, Most Current
| Organization: | NR |
| Publication Date: | 1 November 1991 |
| Status: | inactive |
| Page Count: | 25 |
scope:
See individual document
Purpose:
See individual document
Document History
BR 1641 ISSUE 3
November 1, 1991
Telephone Operators Directory Systems
See individual document Purpose: See individual document