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＜図書＞
Measuring invisibles; the fifty-year record of the world's largest manufacturer of electrical measuring instruments

出版者	Newark, N.J. : Weston Electrical Instrument Corporation
出版年	{c1938}
大きさ	51, {1} p. illus. 32 cm.
著者標目	Weston Electrical Instrument Corporation Babcock, F. Lawrence, Associates, New York
件　名	Weston, Edward, 1850-1936 Electric measurements Measuring instruments Electric apparatus and appliances
一般注記	""Planned and written by F. Lawrence Babcock Associates, New York.""

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