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发明名称
TONE HOLE COVERING ASSEMBLY FOR USE IN WOOD-WIND MUSICAL INSTRUMENTS AND A METHOD OF ASSEMBLING THE SAME
摘要
申请公布号
US3623391(A)
申请公布日期
1971.11.30
申请号
USD3623391
申请日期
1970.06.18
申请人
NIPPON GAKKI SEIZO KK.
发明人
AKIRA NAGAO
分类号
G10D9/00;G10D9/04;(IPC1-7):G10D7/00
主分类号
G10D9/00
代理机构
代理人
主权项
地址
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