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发明名称
DATA TRANSMISSION APPARATUS UTILIZING FREQUENCY SHIFT KEYING
摘要
申请公布号
CA830087(A)
申请公布日期
1969.12.16
申请号
CAD830087
申请日期
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
WILLIAM G. CROUSE
分类号
主分类号
代理机构
代理人
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