Division 552: Non-Bell Type PBX
Section
Date
Issue
Size
Title
552-000-000PT
1976-08-01
L
124.85 KB
Pacific Tel. - Numerical Index - Division 552 - Non-Bell Type PBX
552-000-000PT
1978-10-01
R
131.45 KB
Pacific Tel. - Numerical Index - Division 552 - Non-Bell Type PBX