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发明名称
Facepiece
摘要
申请公布号
US2382364(A)
申请公布日期
1945.08.14
申请号
US19410422791
申请日期
1941.12.13
申请人
MINE SAFETY APPLIANCES COMPANY;RUDOLPH FINK
发明人
YANT WILLIAM P.
分类号
A62B18/02
主分类号
A62B18/02
代理机构
代理人
主权项
地址
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