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DK573C
(en)
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Electrical Apparatus for Signaling Water Level Indicators and Manometers.
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GB189622708A
(en)
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New or Improved Apparatus for Indicating the Times of the Tides.
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ES28814A3
(en)
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An announcement procedure using apparatus called "annunciator hygrometers".
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DK361C
(en)
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Apparatus for Purifying Food Water.
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DK3916C
(en)
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Apparatus for Reporting Water Deficiency in Boilers.
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DK4192C
(en)
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Apparatus for signaling locomotives and the like.
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DK4207C
(en)
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Apparatus for Transmitting and Alarming Signals from the Semaphore or Block Posts to the Locomotive.
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DK1757C
(en)
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Acetylene gas generating apparatus for automatic floating of floats, such as rescue apparatus, signaling apparatus and the like.
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DK5934C
(en)
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Corrosion Apparatus.
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GB189613607A
(en)
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An Improved Measuring Tap or Apparatus.
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ES32600A1
(en)
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Improvements in apparatus for making water gas.
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DK671C
(en)
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Method and Apparatus for the manufacture of cylindrical casings.
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DK1079C
(en)
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Apparatus for the Development of Vessels.
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DK4318C
(en)
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Apparatus for Capturing Mercury.
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DK4271C
(en)
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Signal device for ensuring normal water level in water tanks, boilers and the like.
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GB189421392A
(en)
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Improvements in Audible Signalling Apparatus.
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DK4363C
(en)
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Apparatus for Heating and Circulating Water.
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DK3637C
(en)
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Devices for signaling apparatus and similar purposes.
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DK441C
(en)
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Apparatus for Making Butter.
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DK4267C
(en)
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Apparatus for Decomposing Carbides.
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DK4147C
(en)
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Telephone system with associated Device.
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GB189508877A
(en)
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Improvements in Apparatus for the Disinfection of Sewage.
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ES27909A2
(en)
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Improvements introduced in an electrical warning device.
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CH7218A
(en)
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Apparatus for purifying sewer water
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ES20910A1
(en)
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Improvements in electrical telegraphy systems by means of the apparatus described.
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