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发明名称
Sand seal shoe
摘要
申请公布号
US2463633(A)
申请公布日期
1949.03.08
申请号
US19430475730
申请日期
1943.02.13
申请人
LONGENECKER LEVI S
发明人
LONGENECKER LEVI S.
分类号
C21D9/00
主分类号
C21D9/00
代理机构
代理人
主权项
地址
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