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发明名称
Vibration damping device
摘要
申请公布号
US2031948(A)
申请公布日期
1936.02.25
申请号
US19330682454
申请日期
1933.07.27
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
HARRISON HENRY C.
分类号
H04R1/16;H04R9/12
主分类号
H04R1/16
代理机构
代理人
主权项
地址
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