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发明名称
Improvements in building tiles for the heat insulation of flat roofs
摘要
申请公布号
GB444505(A)
申请公布日期
1936.03.23
申请号
GB19340034345
申请日期
1934.11.29
申请人
WILLIAM GEORGE GOLDNEY;PERMANITE LIMITED
发明人
分类号
C04B28/04;E04D1/16
主分类号
C04B28/04
代理机构
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