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发明名称
Call transmitting devices
摘要
申请公布号
US2999903(A)
申请公布日期
1961.09.12
申请号
US19570694979
申请日期
1957.11.07
申请人
REYNOLD HENATSCH
发明人
HENATSCH REYNOLD
分类号
H04M1/38
主分类号
H04M1/38
代理机构
代理人
主权项
地址
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