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发明名称
Trouble recorder
摘要
申请公布号
US3329965(A)
申请公布日期
1967.07.04
申请号
US19650465509
申请日期
1965.07.16
申请人
INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
发明人
AVERY ROBERT CAMPBELL
分类号
H04M3/10
主分类号
H04M3/10
代理机构
代理人
主权项
地址
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