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发明名称
Drawing instrument
摘要
申请公布号
GB888588(A)
申请公布日期
1962.01.31
申请号
GB19590031869
申请日期
1959.09.18
申请人
THE BRITISH PETROLEUM COMPANY LIMITED;JOHN CASSAN CARRICK WILLIAMS
发明人
分类号
B43L13/10
主分类号
B43L13/10
代理机构
代理人
主权项
地址
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