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发明名称
ENDMASSRACHENLEHRE.
摘要
申请公布号
DE1640663(U)
申请公布日期
1952.07.10
申请号
DE195200B8292U
申请日期
1952.03.10
申请人
ALFRED BRAUN
发明人
ALFRED BRAUN
分类号
主分类号
代理机构
代理人
主权项
地址
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