发明名称 |
Display device |
摘要 |
|
申请公布号 |
US1946848(A) |
申请公布日期 |
1934.02.13 |
申请号 |
US19310570337 |
申请日期 |
1931.10.22 |
申请人 |
GOLDSMITH BERTRAM J |
发明人 |
GOLDSMITH BERTRAM J. |
分类号 |
A47F7/17 |
主分类号 |
A47F7/17 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|
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