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发明名称
APPARATUS FOR PRODUCING AERATED CEMENTITIOUS MATERIAL
摘要
申请公布号
GB8928975(D0)
申请公布日期
1990.02.28
申请号
GB19890028975
申请日期
1989.12.22
申请人
WILLIAMS, WILLIAM T
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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