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发明名称
Indicator
摘要
申请公布号
US2382495(A)
申请公布日期
1945.08.14
申请号
US19440523597
申请日期
1944.02.23
申请人
MALATESTA JR JOHN B
发明人
JR. JOHN B. MALATESTA,
分类号
A63B69/36
主分类号
A63B69/36
代理机构
代理人
主权项
地址
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