发明名称 |
Ball amusement device |
摘要 |
|
申请公布号 |
US2129489(A) |
申请公布日期 |
1938.09.06 |
申请号 |
US19370123949 |
申请日期 |
1937.02.04 |
申请人 |
ALEXANDER BROWN |
发明人 |
BROWN ALEXANDER |
分类号 |
A63F7/00 |
主分类号 |
A63F7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
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