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发明名称
EINRICHTUNG AN IMMERWAEHRENDEN KALENDERN.
摘要
申请公布号
DE1679070(U)
申请公布日期
1954.07.01
申请号
DE195400P6199U
申请日期
1954.03.06
申请人
WALTER PETERSEN, UHRENFABRIK
发明人
分类号
主分类号
代理机构
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