发明名称 |
Sash balance |
摘要 |
|
申请公布号 |
US2098634(A) |
申请公布日期 |
1937.11.09 |
申请号 |
US19350015917 |
申请日期 |
1935.04.11 |
申请人 |
DAVID ROSENTHAL |
发明人 |
ROSENTHAL DAVID |
分类号 |
E05D13/00 |
主分类号 |
E05D13/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|
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