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Biswas, Nripendra Nath,

Principals of telegraphy / Nripendra Nath Biswas - India: Media Promoters & Publishers pvt ltd., c1964. - x,185p.: table, figs.; 22 cm.

Includes Index.

Includes bibliographical reference (Various Chapter)




english

0862492459


Telegraph
Telegraph--Equipment and supplies

621.382/BIP
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