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Joshua Entwisle
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Individual
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Individual
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Publication of GB190509183ApublicationCriticalpatent/GB190509183A/en
9183. Entwisle, J., [Crozet, L.]. May 2. Clinometers.-The block a, to which the spirit levels are attached in the usual way, as shown, is hinged to the plate d, the inclination between the two being adjusted by the screw e and nut g, and measured on the scale h. The screw e and scalearm h are pivoted to the base.
GB190509183D1905-05-021905-05-02Improvements in or connected with Spirit and Plumb Levels.
ExpiredGB190509183A
(en)
Improvements in Fittings for Obtaining Rapid Adjustments of Levels Theodolites, or other Instruments such as require to be Mounted on Tripods or Stands.