发明名称 |
Arch support |
摘要 |
|
申请公布号 |
US1820747(A) |
申请公布日期 |
1931.08.25 |
申请号 |
US19300500521 |
申请日期 |
1930.12.06 |
申请人 |
KRAUSZ ARTHUR F |
发明人 |
KRAUSZ ARTHUR F. |
分类号 |
A43B7/22 |
主分类号 |
A43B7/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|
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