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George Eagle
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Individual
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G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
G01C1/00—Measuring angles
G01C1/02—Theodolites
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Engineering & Computer Science
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General Physics & Mathematics
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Radar, Positioning & Navigation
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Respiratory Apparatuses And Protective Means
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Battery Electrode And Active Subsutance
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Forms Removed On Construction Sites Or Auxiliary Members Thereof
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Abstract
27,001. Eagle, G. Dec. 2. Theodolites.-In instruments adapted to sight the nadir, the upper plate B is perforated as at H, H<1> so that sights can be taken through it. The lower branch &c. are also adapted to give a substantially uninterrupted view.
GB191127001D1911-12-021911-12-02Improvements in Theodolites.
ExpiredGB191127001A
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