Protection of electrical circuits and equipment against ligntning : preliminary report of the Sectional Committee on Protection against Lightning, September 12, 1929
Bok Engelsk 1929
Utgitt | Washington : G.P.O. , 1929
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Omfang | IX, 107 s. : ill.
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Utgitt | Washington : G.P.O. , 1929
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Omfang | IX, 107 s. : ill.
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