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发明名称
HATCH CONSTRUCTION
摘要
申请公布号
CA371658(A)
申请公布日期
1938.02.01
申请号
CAD371658
申请日期
申请人
P. H. MURPHY COMPANY OF CANADA LIMITED
发明人
CHARLES DAVID BONSALL
分类号
主分类号
代理机构
代理人
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