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发明名称
PROTECTIVE APPARATUS
摘要
申请公布号
CA454643(A)
申请公布日期
1949.02.15
申请号
CAD454643
申请日期
申请人
THE B.F. GOODRICH COMPANY
发明人
EUGENE ELMAN HESTON
分类号
主分类号
代理机构
代理人
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地址
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