G.P.O. Specification for customers' data transmission devices for use on the public inland telephone system.
- PART OF:
- H. McGregor Ross Archive
- Made:
- 1961-10
- part of archive:
- H. McGregor Ross Archive
- maker:
- Ross, Hugh McGregor
Details
- Extent:
-
1 item
- Identifier:
- ROSS/44
- Access:
- Open Access
- copyright: