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发明名称
DIAL TELEPHONE SYSTEM
摘要
申请公布号
CA397168(A)
申请公布日期
1941.06.10
申请号
CAD397168
申请日期
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
WARREN WESLEY CARPENTER
分类号
主分类号
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代理人
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DETERGENT COMPOSITIONS
PREPARATION OF BENZAMIDE DERIVATIVE
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PREPARATION OF CAM SHAFT
INSTALLATION DEVICE FOR CEILING SUSPENSION TYPE AIR- CONDITIONING MACHINE
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