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发明名称
Welding chair
摘要
申请公布号
US2854292(A)
申请公布日期
1958.09.30
申请号
US19570649516
申请日期
1957.03.29
申请人
LEHIGH CONSTRUCTION COMPANY, INC.
发明人
SCHAEFFER JOHN M.
分类号
B23K5/22
主分类号
B23K5/22
代理机构
代理人
主权项
地址
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