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发明名称
COMMUNICATION SYSTEM
摘要
申请公布号
CA443319(A)
申请公布日期
1947.07.29
申请号
CAD443319
申请日期
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED;AMERICAN TELEPHONE AND TELEGRAPH COMPANY;BELL TELEPHONE LABORATORIES INCORPORATED
发明人
JOSEPH ANTON KRECEK;CHARLES ROBERT WALTER
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