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发明名称
ACTIVE NOISE CONTROL SYSTEM FOR A DEFINED VOLUME OF A HELICOPTER
摘要
申请公布号
EP1031136(B2)
申请公布日期
2011.01.19
申请号
EP19980957306
申请日期
1998.08.18
申请人
SIKORSKY AIRCRAFT CORPORATION
发明人
WELSH, WILLIAM, A.;YOERKIE, CHARLES, A., JR.
分类号
B64C27/00;B64C27/04;F16F15/02;G10K11/178
主分类号
B64C27/00
代理机构
代理人
主权项
地址
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