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发明名称
Check protector
摘要
申请公布号
US1815076(A)
申请公布日期
1931.07.21
申请号
US19280326764
申请日期
1928.12.18
申请人
SEVERY VICTOR H
发明人
SEVERY VICTOR H.
分类号
B41K3/38
主分类号
B41K3/38
代理机构
代理人
主权项
地址
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