Telephone development and the effect on the operating and technical staff. Report presented to the Xth Congress of the P.T.T.I., Brussels, 24-26 Ausgust 1939
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| Institution: | International Institute of Social History |
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| Format: | TEXT |
| Published: |
Postal, Telegraph and Telephone International,
n.d.
Berne : |
| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/C5077F8D-4725-4292-B4D8-BDF5DD762940 |
| Summary: | Stencil. |
|---|---|
| Published: | n.d. |