Pioneers of electrical communication.
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| Format: | Book |
| Language: | English |
| Published: |
Freeport, N.Y. :
Books for Libraries Press,
[1968]
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| Series: | Essay index reprint series
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| Subjects: |
| Item Description: | Reprint of the 1930 edition. |
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| Physical Description: | ix, 347 pages : illustrations, facsimiles, portraits ; 22 cm. |