发明名称 |
Sound producing device |
摘要 |
|
申请公布号 |
US3094972(A) |
申请公布日期 |
1963.06.25 |
申请号 |
US19620164244 |
申请日期 |
1962.01.04 |
申请人 |
LEAVENWORTH MAX H |
发明人 |
LEAVENWORTH MAX H. |
分类号 |
G10K7/00 |
主分类号 |
G10K7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
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