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经营范围
发明名称
(A) ;DOUBLE TWISTING DIRECT TWISTING FRAME
摘要
申请公布号
JPS53147827(U)
申请公布日期
1978.11.21
申请号
JP19770052870U
申请日期
1977.04.26
申请人
发明人
分类号
H04R7/18;H04R9/06;(IPC1-7):H04R7/18
主分类号
H04R7/18
代理机构
代理人
主权项
地址
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