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发明名称
Roof seaming tool
摘要
申请公布号
US2143339(A)
申请公布日期
1939.01.10
申请号
US19380197750
申请日期
1938.03.23
申请人
LLOYD O. WIESE
发明人
WIESE GEORGE W.
分类号
B21D39/02
主分类号
B21D39/02
代理机构
代理人
主权项
地址
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