发明名称 |
Distance finder |
摘要 |
|
申请公布号 |
US2032867(A) |
申请公布日期 |
1936.03.03 |
申请号 |
US19350005698 |
申请日期 |
1935.02.09 |
申请人 |
KEUFFEL & ESSER CO. |
发明人 |
CAMPBELL ALEXINA |
分类号 |
G01C3/02 |
主分类号 |
G01C3/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|
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