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发明名称
Treppe.
摘要
申请公布号
CH189576(A)
申请公布日期
1937.03.15
申请号
CHD189576
申请日期
1936.09.25
申请人
GAMMA,OTTO
发明人
GAMMA,OTTO
分类号
E04F11/025
主分类号
E04F11/025
代理机构
代理人
主权项
地址
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