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发明名称
SCHREIBPROJEKTOR.
摘要
申请公布号
DE7013649(U)
申请公布日期
1970.08.20
申请号
DE19700013649U
申请日期
1970.04.09
申请人
RITZERFELD, GERHARD
发明人
RITZERFELD, GERHARD
分类号
B43L13/02;G03B21/132
主分类号
B43L13/02
代理机构
代理人
主权项
地址
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