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经营范围
发明名称
Improvements in leather substitutes
摘要
申请公布号
GB505794(A)
申请公布日期
1939.05.17
申请号
GB19380006120
申请日期
1938.02.26
申请人
WALTER FREUDENBERG;OTTO FREUDENBERG;HANS FREUDENBERG;RICHARD FREUDENBERG;CARL LUDWIG NOTTEBOHM
发明人
分类号
D06N3/00
主分类号
D06N3/00
代理机构
代理人
主权项
地址
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