发明名称 |
Trailer hitch |
摘要 |
|
申请公布号 |
US2157998(A) |
申请公布日期 |
1939.05.09 |
申请号 |
US19380214794 |
申请日期 |
1938.06.20 |
申请人 |
CALLAWAY COLEMAN E |
发明人 |
CALLAWAY COLEMAN E. |
分类号 |
B60D1/66;B60S9/16 |
主分类号 |
B60D1/66 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|
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