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经营范围
发明名称
Electromagnetic diaphragm horn
摘要
申请公布号
US3271760(A)
申请公布日期
1966.09.06
申请号
US19620209608
申请日期
1962.07.13
申请人
GENERAL MOTORS CORPORATION
发明人
JR. CLARK E. SLOAN,
分类号
G10K9/15
主分类号
G10K9/15
代理机构
代理人
主权项
地址
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