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发明名称
Spark intensifying device
摘要
申请公布号
US1982950(A)
申请公布日期
1934.12.04
申请号
US19330653000
申请日期
1933.01.23
申请人
HELEN BAUS CURTIS
发明人
CURTIS JAMES D.
分类号
H01T13/46
主分类号
H01T13/46
代理机构
代理人
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