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发明名称
Method and machine for assembling venetian blind headbars
摘要
申请公布号
US2603856(A)
申请公布日期
1952.07.22
申请号
US19460694237
申请日期
1946.08.31
申请人
LORENTZEN HARDWARE MF'G. CORP.
发明人
NELSON HARRY
分类号
B21D53/74;E06B9/266
主分类号
B21D53/74
代理机构
代理人
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地址
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