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发明名称
Drawing protector
摘要
申请公布号
US3273244(A)
申请公布日期
1966.09.20
申请号
US19650472090
申请日期
1965.07.15
申请人
GOENNER ALBERT O
发明人
GOENNER ALBERT O.
分类号
B43L13/04
主分类号
B43L13/04
代理机构
代理人
主权项
地址
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