发明名称 |
Improvements in or relating to map reading devices and the like |
摘要 |
A self - luminous map reader comprises a tritiumfilled luminous tube 4 mounted in a hollow viewer 1. Two or more tubes 4 emitting different coloured light may be used, the tube assembly being rotated to give the required illumination colour. <PICT:1004710/C4-C5/1> |
申请公布号 |
GB1004710(A) |
申请公布日期 |
1965.09.15 |
申请号 |
GB19630017089 |
申请日期 |
1963.05.01 |
申请人 |
SAUNDERS-ROE & NUCLEAR ENTERPRISES LIMITED |
发明人 |
AULT JOHN DOUGLAS;GUTHRIE DAVID GRAHAM |
分类号 |
C09K11/04;F21K2/00;G09B29/10 |
主分类号 |
C09K11/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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