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发明名称
Switching or control mechanism for dispatch systems
摘要
申请公布号
US1838208(A)
申请公布日期
1931.12.29
申请号
US19290406906
申请日期
1929.11.13
申请人
COMPANY TELEPHON-APPARAT-FABRIK G. ZWIETUSCH & CO., G. M. B. H.
发明人
APPELIUS FRITZ
分类号
B65G51/46
主分类号
B65G51/46
代理机构
代理人
主权项
地址
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