| 发明名称 |
Location Device with a Gravity Measuring Device |
| 摘要 |
A location device has a gravity measurement instrument in communication with a database which has the locations relative to time of an astronomical object. The location device also has a timepiece indicating the time which may be used to determine the location of the astronomical object.
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| 申请公布号 |
US2009012741(A1) |
申请公布日期 |
2009.01.08 |
| 申请号 |
US20070772907 |
申请日期 |
2007.07.03 |
| 申请人 |
HALL DAVID R;LUNDGREEN DAVID;DURRAND CHRISTOPHER;SCHWARTZ MARK A |
发明人 |
HALL DAVID R.;LUNDGREEN DAVID;DURRAND CHRISTOPHER;SCHWARTZ MARK A. |
| 分类号 |
G01C21/00;E21B47/09;G01V7/00 |
主分类号 |
G01C21/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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