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发明名称
Method of cutting
摘要
申请公布号
US2302024(A)
申请公布日期
1942.11.17
申请号
US19410394780
申请日期
1941.05.23
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
JR. FRANK A. GOSS,
分类号
H03H3/02;H03H9/13
主分类号
H03H3/02
代理机构
代理人
主权项
地址
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