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发明名称
BENDER TYPE TRANSDUCERS
摘要
申请公布号
US3497731(A)
申请公布日期
1970.02.24
申请号
USD3497731
申请日期
1967.09.19
申请人
GENERAL DYNAMICS CORP.
发明人
HELMUT J. STRAUBE
分类号
B06B1/06;(IPC1-7):H01V7/00
主分类号
B06B1/06
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