发明名称 |
Shadow box to measure the elevation of the sun includes a transparent box, a shadow forming member and a scale or ruler |
摘要 |
The transparent box 1 is typically used to determine the latitude of the sun from horizontal shadow forming member 2 and scale 7 attached to the bottom of the box.
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申请公布号 |
NZ330280(A) |
申请公布日期 |
2000.07.28 |
申请号 |
NZ19980330280 |
申请日期 |
1998.04.24 |
申请人 |
GRAHAM JAMES MURRAY |
发明人 |
MURRAY, GRAHAM JAMES |
分类号 |
G01C21/20;G04B49/00;(IPC1-7):G01C21/20 |
主分类号 |
G01C21/20 |
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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