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发明名称
Improvements in greenhouse structures
摘要
申请公布号
GB557231(A)
申请公布日期
1943.11.11
申请号
GB19420001493
申请日期
1942.02.04
申请人
JOHANNES NEGRIJN;JOHANNES FREDRICUS LUDOVICUS NEGRIJN
发明人
分类号
A01G9/14
主分类号
A01G9/14
代理机构
代理人
主权项
地址
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