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China: Position of Cable Companies in China; importation of wireless apparatus into China; regulations for wireless operators on ships on the coast and rivers of China; use of secret codes by commercial companies in dispatch of telegraph messages; Shanghai incident of May 30th, 1925; Sino-Japanese treaty revision
Marlborough, Wiltshire : Adam Matthew Digital, 2013.
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Adam Matthews Digital (Firm),
AMDigital Reference: FO 371/14718.