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发明名称
Method of taking up the play of spikes
摘要
申请公布号
US2265499(A)
申请公布日期
1941.12.09
申请号
US19400338605
申请日期
1940.06.03
申请人
PAUL STREIT ALBERT
发明人
STREIT ALBERT PAUL
分类号
E01B9/16;F16B13/12
主分类号
E01B9/16
代理机构
代理人
主权项
地址
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