Telephony : a manual of the design, construction, and operation of telephone exchanges. Pt. 6. Switchboards and the central office
Arthur Vaughan Abbott
Bok Engelsk 1905
Utgitt | New York : McGraw-Hill , 1905
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Omfang | 275 s.
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Emner |
Utgitt | New York : McGraw-Hill , 1905
|
---|---|
Omfang | 275 s.
|
Emner |