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发明名称
Dispositifs protège-tympan perfectionnés
摘要
申请公布号
FR1190623(A)
申请公布日期
1959.10.14
申请号
FRD1190623
申请日期
1957.11.22
申请人
MINE SAFETY APPLIANCES COMPANY
发明人
分类号
A61F11/10
主分类号
A61F11/10
代理机构
代理人
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地址
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