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Henry Brown
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Individual
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Individual
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Publication of GB190920272ApublicationCriticalpatent/GB190920272A/en
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
Abstract
20,272. Brown, H. March 4, 1910. Mariners' compasses.-An azimuth or steering-ring 6 in a liquid mariner's compass is secured to the inner surface of the bowl 1 on a level, or an approximate level, with the compass card 2 and with its inner edge in close proximity to the outer edge of the compass card 2. Specification 7167/07 is referred to.
GB190920272D1910-03-041910-03-04Improvements in Mariners' Compasses.
ExpiredGB190920272A
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