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发明名称
ACOUSTIC APPARATUS
摘要
申请公布号
US3485205(A)
申请公布日期
1969.12.23
申请号
USD3485205
申请日期
1965.06.29
申请人
JOHN V. BOUYOUCOS
发明人
JOHN V. BOUYOUCOS
分类号
G01V1/02;G01V1/135;(IPC1-7):G10K5/00;G10K9/10
主分类号
G01V1/02
代理机构
代理人
主权项
地址
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