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经营范围
发明名称
Spike puller
摘要
申请公布号
US1830269(A)
申请公布日期
1931.11.03
申请号
US19290340905
申请日期
1929.02.18
申请人
EZRA FORD
发明人
FORD EZRA
分类号
E01B29/26
主分类号
E01B29/26
代理机构
代理人
主权项
地址
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