Patent US4125574A successfully refreshed from Google Patents.
Patent FR2552908A1 successfully refreshed from Google Patents.
FR2552908A1
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Indexing device on a geographical map
Assignee: OPALINSKI CHRISTIAN
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Filing: 1983-10-04
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Granted: —
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Expires: 2003-10-04
Abstract
Abstract The invention relates to indexing, on a geographical map, for example a roadmap, of a place for which a set of orthogonal coordinates are known. The invention proposes to this end a set of two graduated rulers, 10, 20 one of which, 20, movable, is mounted slidably along the other 10 so as to remain perpendicular to it, this movable ruler 20 having a transverse zero mark aligned with a longitudinal line, such as an edge, of the other ruler 10 forming a support. Application: rapid indexing on a map, especially a road map.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-08 21:26
CPC Classifications
G; G09; G09B; G09B29/00; G09B29/10
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