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发明名称
SAND TEMPERING MACHINE
摘要
申请公布号
CA306351(A)
申请公布日期
1930.12.02
申请号
CAD306351
申请日期
申请人
THE JEFFREY MANUFACTURING CO. LTD.
发明人
ROBERT E. BRIGGS
分类号
主分类号
代理机构
代理人
主权项
地址
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