Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sperry Corp
Original Assignee
Sperry Rand Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US567204Aexternal-prioritypatent/US2887873A/en
Priority claimed from US567203Aexternal-prioritypatent/US2887872A/en
Application filed by Sperry Rand CorpfiledCriticalSperry Rand Corp
Application grantedgrantedCritical
Publication of FR1172659ApublicationCriticalpatent/FR1172659A/fr
G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
G01C17/38—Testing, calibrating, or compensating of compasses
Landscapes
Engineering & Computer Science
(AREA)
Radar, Positioning & Navigation
(AREA)
Remote Sensing
(AREA)
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR1172659D1956-02-231957-02-22Procédé et appareil pour assurer le déplacement angulaire d'un compas dans un véhicule, sans déplacement de ce dernier
ExpiredFR1172659A
(fr)