| 发明名称 |
IMPROVEMENTS IN OR RELATING TO SIGHT GLASSES |
| 摘要 |
<p>A sight glass 1 comprises a disc 24 of glass fixed within a carrier 14 which can move within a part spherical mounting 6 such that each surface 26, 28 can be exposed to the exterior or the interior of a vessel merely by turning the carrier 14 by a handle 22. <IMAGE></p> |
| 申请公布号 |
GB2075645(B) |
申请公布日期 |
1983.11.30 |
| 申请号 |
GB19800014783 |
申请日期 |
1980.05.02 |
| 申请人 |
COAL INDUSTRY (PATENTS) LTD |
发明人 |
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| 分类号 |
F27D21/02;(IPC1-7):27D21/02 |
主分类号 |
F27D21/02 |
| 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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