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经营范围
发明名称
Improvements in or relating to heat insulating materials
摘要
申请公布号
GB432019(A)
申请公布日期
1935.07.15
申请号
GB19330035222
申请日期
1933.12.14
申请人
FRANZ WILLIAM SEVING;ABEL BERGQVIST;KARL ERIC OLSSON
发明人
分类号
B32B27/00
主分类号
B32B27/00
代理机构
代理人
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