发明名称 |
Emergency marker |
摘要 |
|
申请公布号 |
US3256853(A) |
申请公布日期 |
1966.06.21 |
申请号 |
US19640394153 |
申请日期 |
1964.09.03 |
申请人 |
L. H. UNDERWOOD, INC. |
发明人 |
UNDERWOOD LEO H. |
分类号 |
B60Q7/00 |
主分类号 |
B60Q7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|
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