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发明名称
TONE ACTUATED DICTATION SYSTEMS
摘要
申请公布号
US3527312(A)
申请公布日期
1970.09.08
申请号
USD3527312
申请日期
1968.06.17
申请人
INTERN. BUSINESS MACHINES CORP.
发明人
THOMAS E. DOOLEY
分类号
H04M11/10;(IPC1-7):G11B19/08;G11B31/00
主分类号
H04M11/10
代理机构
代理人
主权项
地址
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