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发明名称
MANUFACTURE OF DIAPHRAGM FOR VITREOUS HARD CARBONACEOUS ACOUSTIC EQUIPMENT
摘要
申请公布号
JPS6256098(A)
申请公布日期
1987.03.11
申请号
JP19850194755
申请日期
1985.09.05
申请人
MITSUBISHI PENCIL CO LTD
发明人
ODAJIMA HIDEO
分类号
H04R7/02;H04R31/00
主分类号
H04R7/02
代理机构
代理人
主权项
地址
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