Dian bao xin hao ji bian ce shi qi
By: Gu Zhenmin deng bian [xie].
Edition: Di 1 ban
Publisher: Ren min you dian chu ban she; Xin hua shu dian Beijing fa xing suo fa xing
Published: 1981
Place of publication: Beijing
Language: chi
Number of pages: 141
Subjects: Telegraph, Wireless -- Testing -- Equipment and supplies.; Signals and signaling -- Testing -- Equipment and supplies.