Michelson
2019
Experimental Determination of the Velocity of Light: Enriched edition. Made at the US Naval Academy, Annapolis
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1956-02-14
Measurement indicating means for
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1977-01-31
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1952-11-04
Apparatus and method of surveying elevations
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1971-01-26
Coding theodolite
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1969-03-18
Focal plane micrometer for reading the scales of engineering instruments
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1965-01-05
Rapid comparator
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1951-05-15
Theodolite scale reading system
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1938-11-22
Light measuring device
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1972-05-23
Sight-taking periscope
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1928-05-29
Measuring instrument
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1895-05-21
donnan
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1971-08-04
An improved photometric instrument
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1969-03-19
Improvements in or relating to optical instruments for print quality analyses
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1907-03-12
Optical device for use with measuring instruments.
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1937-02-23
Range finder
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1960-08-23
Calibration of torsion magnetometers
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1965-08-17
Theodolite with coded indications
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1915-08-10
Surveying-telescope.
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1983-12-07
Оптический угломер
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1972-04-25
Device to facilitate the focusing of a distance meter
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1918-12-10
Flash-light meter.
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1957-03-26
Surveying instruments
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1945-11-30
Угломерное устройство
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1962-11-30
Отсчетное устройство дл измерени малых линейных перемещений