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发明名称
DIGITAL TRANSMISSION SYSTEM
摘要
申请公布号
US3516065(A)
申请公布日期
1970.06.02
申请号
USD3516065
申请日期
1967.01.13
申请人
INTERN. BUSINESS MACHINES CORP.
发明人
MURRAY H. BOLT;HOWARD H. NICK
分类号
G06F13/40;H04L12/40;(IPC1-7):H04Q5/00
主分类号
G06F13/40
代理机构
代理人
主权项
地址
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