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发明名称
Flexible back-up bar
摘要
申请公布号
US3219250(A)
申请公布日期
1965.11.23
申请号
US19640347626
申请日期
1964.02.26
申请人
DRUMMOND AUBREY S
发明人
DRUMMOND AUBREY S.
分类号
B23K9/035
主分类号
B23K9/035
代理机构
代理人
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地址
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