发明名称 |
Magnetic compass assembly |
摘要 |
A compass assembly having an adjustable sighting element whereby the line of sight may be set to meet individual requirements. The assembly is constituted by a transparent compass capsule having a magnetic needle therein which is movable relative to a compass scale. The capsule is detachably received in a casing having a depression formed in the bottom thereof to accommodate a sighting element which is adjustable to assume a selected angular position, the line of sight and its orientation relative to said compass scale being viewable through said capsule.
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申请公布号 |
US3919782(A) |
申请公布日期 |
1975.11.18 |
申请号 |
US19740457557 |
申请日期 |
1974.04.03 |
申请人 |
RECTA MANUFACTURE D'HORLOGERIE S.A. |
发明人 |
VAUCHER, DENIS MAURICE |
分类号 |
G01C17/00;G01C17/12;(IPC1-7):G01C17/10 |
主分类号 |
G01C17/00 |
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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