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US4068207A
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Acoustic log
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US4041293A
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Method of measuring the velocity of an object relative to a reference and a device for effecting said method
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DE2523021A1
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Optical instrument movable part adjustment device - is for an instrument mounted in a hermetically sealed housing
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GB1495082A
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Breathing gas dosing device for a lung ventilator
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ES434111A1
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A device to control two aguilon cooperants. (Machine-translation by Google Translate, not legally binding)
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US3991398A
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Acoustic log
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US3875968A
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Device for mixing gaseous fluids
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GB1451878A
|
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Lung ventilator
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US3875626A
|
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Device for measuring the tidal gas volume in a lung ventilator
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DE2344362A1
|
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Nautical log with a pressure comparator - has a transmission unit which controls a servo system through a differential transformer
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GB1431857A
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Day- and night-tracking instrument
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GB1376374A
|
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Pressure log for ships
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GB1325752A
|
|
Observational field-glass
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US3658419A
|
|
Device to facilitate the focusing of a distance meter
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US3628145A
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Inductive apparatus for indicating mechanical positions and/or measuring linear positional changes
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GB1274487A
|
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A system for indicating angular positions by means of synchros
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US3603777A
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Method and apparatus for generating an electrical signal, representing a value of a function of an independent variable
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GB1216357A
|
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Apparatus for resetting an analog integrator
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US3551811A
|
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Method and apparatus for determining the frequency of an electrical signal
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SU568392A3
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X-ray goniometer
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