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发明名称
Fluchtlinientafel mit beweglichen Zungen
摘要
申请公布号
DE887420(C)
申请公布日期
1953.08.24
申请号
DE1949P003118
申请日期
1949.06.03
申请人
GAISER HEINRICH;GAISER LUDWIG
发明人
GAISER HEINRICH;GAISER LUDWIG
分类号
G06G1/14
主分类号
G06G1/14
代理机构
代理人
主权项
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