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发明名称
IMPROVEMENTS IN AND RELATING TO THE VIEWING OR INSPECTION OF INACCESSIBLE CAVITIES OR REGIONS
摘要
申请公布号
GB1210213(A)
申请公布日期
1970.10.28
申请号
GB19660053241
申请日期
1966.11.28
申请人
FOSTER WHEELER JOHN BROWN BOILERS LIMITED
发明人
LAWRENCE EDWARD HELYER
分类号
G02B23/24
主分类号
G02B23/24
代理机构
代理人
主权项
地址
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