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发明名称
Method of making track guides
摘要
申请公布号
US2415212(A)
申请公布日期
1947.02.04
申请号
US19430474036
申请日期
1943.01.26
申请人
LEAKE JAMES M
发明人
LEAKE JAMES M.
分类号
B21K23/02
主分类号
B21K23/02
代理机构
代理人
主权项
地址
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