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发明名称
Antichatter device
摘要
申请公布号
US2252804(A)
申请公布日期
1941.08.19
申请号
US19400352869
申请日期
1940.08.16
申请人
HAROLD GASS
发明人
GASS HAROLD
分类号
B23Q11/00
主分类号
B23Q11/00
代理机构
代理人
主权项
地址
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