Telephony ; a detailed exposition of the telephone exchange systems of the British post office /
| Main Author: | |
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| Other Authors: | , |
| Format: | Book |
| Language: | English |
| Published: |
London :
I. Pitman,
1948-1950.
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| Edition: | A new ed. of Telephony |
| Subjects: |
| Physical Description: | 2 volumes : illustrations ; 26 cm. |
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| Bibliography: | Bibliography: volume 1, pages 493-497. |