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经营范围
发明名称
SCREEN-TIGHTENING APPARATUS
摘要
申请公布号
US3469695(A)
申请公布日期
1969.09.30
申请号
USD3469695
申请日期
1967.10.20
申请人
CARROLL D. GREENINGER
发明人
CARROLL D. GREENINGER
分类号
B07B1/48;(IPC1-7):B07B1/28
主分类号
B07B1/48
代理机构
代理人
主权项
地址
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