发明名称 |
Roll-film camera |
摘要 |
|
申请公布号 |
US2351999(A) |
申请公布日期 |
1944.06.20 |
申请号 |
US19400372031 |
申请日期 |
1940.12.28 |
申请人 |
HUBERT NERWIN |
发明人 |
NERWIN HUBERT |
分类号 |
G03B19/04 |
主分类号 |
G03B19/04 |
代理机构 |
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代理人 |
|
主权项 |
|
地址 |
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