发明名称 |
Ribbon oscillograph |
摘要 |
|
申请公布号 |
US2309994(A) |
申请公布日期 |
1943.02.02 |
申请号 |
US19390301789 |
申请日期 |
1939.10.28 |
申请人 |
SKINNER CLIFTON R |
发明人 |
SKINNER CLIFTON R. |
分类号 |
G11B7/00 |
主分类号 |
G11B7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
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