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发明名称
Combination thread or spiral miller
摘要
申请公布号
US1974084(A)
申请公布日期
1934.09.18
申请号
US19320632124
申请日期
1932.09.08
申请人
LAYTH-GRINDAR CORPORATION
发明人
SAROSSY ALBERT
分类号
B23C3/32
主分类号
B23C3/32
代理机构
代理人
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