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发明名称
Shared access to voice and information
摘要
申请公布号
US4943996(A)
申请公布日期
1990.07.24
申请号
US19890294454
申请日期
1989.01.06
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
BAKER, JR., WILLIAM T.;BUFFUM, CHARLES M.;JOLISSAINT, CHARLES H.;KERLIN, GREGG W.
分类号
H04M3/42;H04M3/51;H04M3/56
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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