4. Optics: measuring and testing
  5. Refraction testing
  6. Prism engaging specimen

Walter Schweizer

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Apparatus for measuring the density of a contained liquid, by ut

Optics: measuring and testing – Refraction testing – Prism engaging specimen
Patent

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Apparatus for measuring the density of a liquid, utilizing the l

Optics: measuring and testing – Refraction testing – Prism engaging specimen
Patent

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Apparatus for the continuous measurement of the density of a liq

Optics: measuring and testing – Refraction testing – Refractive rod engages specimen
Patent

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Gear mechanism for transmission of small forces

Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent

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