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发明名称
Spring forming and hardening device
摘要
申请公布号
US1763610(A)
申请公布日期
1930.06.10
申请号
US19270211738
申请日期
1927.08.09
申请人
BACH ADOLPH D
发明人
BACH ADOLPH D.
分类号
C21D9/02
主分类号
C21D9/02
代理机构
代理人
主权项
地址
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