| 发明名称 |
DEVICE FOR INDICATING THE PH VALUE OF WATER IN AQUARIUMS |
| 摘要 |
<p>The present invention provides a device for indicating the pH value of water in an aquarium, comprising a transparent container for an indicator liquid, said container to be dipped into the water of the aquarium said container be provided with a seal which is gas permeable and impermeable to the water of the aquarium when said container is completely submerged there.</p> |
| 申请公布号 |
CA1075572(A) |
申请公布日期 |
1980.04.15 |
| 申请号 |
CA19760260508 |
申请日期 |
1976.09.03 |
| 申请人 |
HILENA BIOLOGISCHE UND CHEMISCHE ERZEUGNISSE GESELLSCHAFT MIT BESC |
发明人 |
KIPPER, HORST |
| 分类号 |
G01N21/80;A01K63/04;G01N31/22;(IPC1-7):01N21/08 |
主分类号 |
G01N21/80 |
| 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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