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发明名称
SAFETY HAT OR HELMET
摘要
申请公布号
CA408874(A)
申请公布日期
1942.11.24
申请号
CAD408874
申请日期
申请人
MINE SAFETY APPLIANCES COMPANY
发明人
EDWARD VICTOR KARABIN;WILLIAM JAMES SHARBAUGH;BARTHOLOMEW WILLIAM CATALANE
分类号
主分类号
代理机构
代理人
主权项
地址
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