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经营范围
发明名称
Improved safety envelope
摘要
申请公布号
GB396906(A)
申请公布日期
1933.08.17
申请号
GB19320016129
申请日期
1932.06.08
申请人
RUDOLPH FERDINAND GUMBRECHT
发明人
分类号
B65D27/30
主分类号
B65D27/30
代理机构
代理人
主权项
地址
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