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经营范围
发明名称
Flexible arch support
摘要
申请公布号
US2138823(A)
申请公布日期
1938.12.06
申请号
US19370141452
申请日期
1937.05.08
申请人
THEODORE WERKMAN
发明人
WERKMAN THEODORE
分类号
A43B23/22
主分类号
A43B23/22
代理机构
代理人
主权项
地址
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