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发明名称
Buckle
摘要
申请公布号
US1838827(A)
申请公布日期
1931.12.29
申请号
US19290408517
申请日期
1929.11.20
申请人
HART JOHN W
发明人
HART JOHN W.
分类号
A44B11/02
主分类号
A44B11/02
代理机构
代理人
主权项
地址
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