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发明名称
Waterproofing agricultural land or soil-based playing grounds
摘要
申请公布号
GB735725(A)
申请公布日期
1955.08.24
申请号
GB19520032731
申请日期
1952.12.24
申请人
IMPERIAL CHEMICAL INDUSTRIES LIMITED
发明人
ASKEY PHILIP JOHN;HAWKINS STANLEY WALLACE
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