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发明名称
Sheet material bending machine
摘要
申请公布号
US2768670(A)
申请公布日期
1956.10.30
申请号
US19520275388
申请日期
1952.03.07
申请人
WALDRON EVERTON MELVIN
发明人
EVERTON MELVIN WALDRON
分类号
B21D5/04
主分类号
B21D5/04
代理机构
代理人
主权项
地址
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