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发明名称
FOTOSCHUTZTASCHE ZUR NEGATIVAUFBEWAHRUNG.
摘要
申请公布号
DE1770870(U)
申请公布日期
1958.07.24
申请号
DE195800G7127U
申请日期
1958.02.14
申请人
HEINRICH GRETENKORD
发明人
HEINRICH GRETENKORD
分类号
主分类号
代理机构
代理人
主权项
地址
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