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DK17822C
(en)
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Breathing apparatus with hood for placement on nose or mouth and with suction and pressure valves.
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DK16395C
(en)
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Apparatus for Inhalation through the Nose.
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AT74108B
(en)
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Device for measuring the pressure and the speed of breathing air.
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GB191002905A
(en)
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Improvements relating to Regulating or Controlling Devices for use with Air Compressing Apparatus and the like.
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GB190806062A
(en)
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Improved Means for Regulating the Flow of Air or Gases Under Pressure.
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GB190915561A
(en)
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Improvements in or relating to Apparatus for Effecting the Extraction of Dust by Air Suction.
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DK21254C
(en)
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Tires for Air Rings and similar Rings for Vehicles.
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FR405604A
(en)
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Automatic air pressure regulator
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DK22597C
(en)
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Safety screen for razors and the like.
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CH69217A
(en)
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Safety valve on suction and pressure pumps
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DK27966C
(en)
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Compressed Air Stop and Compressed Air Safety Device for Elevators.
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GB191017070A
(en)
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Improvements in or relating to Compressors for Air and the like.
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FR451194A
(en)
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Pneumatic device device with suction blower, applicable to the automatic operation of pressure wind harmoniums
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GB190920205A
(en)
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Improvements in Devices for the Automatic Pumping of Air into Pneumatic Tyres.
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GB191101220A
(en)
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Air Compressor.
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ES65806A3
(en)
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The manufacture of a pocket inhaler for the nose and mouth.
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FI5383A
(en)
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Impact on the environment and on the other side of the automatic control valve
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FI6275A
(en)
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You can adjust the effect of the air pressure device to the Papp respirator
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GB109365A
(en)
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New or Improved Apparatus for Recording or Measuring Differences in Pressure between the Gas Contents of an Aerostat and the External Atmosphere.
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FR443214A
(en)
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Pin improvements used for headgear, clothing and the like
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CA118304A
(en)
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Breathing mask
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AU394612A
(en)
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Improvements in apparatus for pulsating or varying air or fluid pressure
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FR427392A
(en)
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System for drawing and keeping the crease in the pants
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CH57641A
(en)
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With a cap to place on the nose and mouth and with suction and pressure valves provided with breathing diverter
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CA144794A
(en)
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Apparatus for enlarging the air passage of the nose
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