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经营范围
发明名称
Kohlenschraemmaschine
摘要
申请公布号
DE890334(C)
申请公布日期
1953.09.17
申请号
DE1951H010819
申请日期
1951.12.20
申请人
AUSTIN HOY AN COMPANY LIMITED
发明人
分类号
E21C25/26
主分类号
E21C25/26
代理机构
代理人
主权项
地址
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