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发明名称
Gummiball mit an Loechern der aeusseren Ballhuelle anliegenden Stimmorganen
摘要
申请公布号
DE502307(C)
申请公布日期
1930.07.11
申请号
DENDATSC90678D
申请日期
申请人
OTTO SCHELLWAT
发明人
分类号
A63H5/00
主分类号
A63H5/00
代理机构
代理人
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地址
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