DK18260C
(en)
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Apparatus for Teaching Use.
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GB191323225A
(en)
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An Apparatus for use in the Teaching of Music.
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DK21013C
(en)
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Apparatus for Flaaning.
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DK16042C
(en)
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Apparatus for Pasteurization.
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DK20533C
(en)
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Apparatus for mechanical Excavation.
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DK17693C
(en)
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Apparatus for Promoting Advertising.
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DK17689C
(en)
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Apparatus for Performing Electrosmotic Separation.
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DK15574C
(en)
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Apparatus for forming glass plates.
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GB191323717A
(en)
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An Improved Apparatus for Teaching Music.
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DK18156C
(en)
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Addition apparatus for Calculators.
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DK18296C
(en)
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Apparatus for Storing Eggs.
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DK17002C
(en)
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Apparatus for Cleaning the Chimneys.
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DK17330C
(en)
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Acetylene development apparatus.
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DK14608C
(en)
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Apparatus for Accounting with Notepads.
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DK17518C
(en)
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Apparatus for Decarburization by Cinematographic Apparatus.
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DK16927C
(en)
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Apparatus for recording the working time of machines.
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DK18105C
(en)
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Apparatus for Laying Glass Cylinders and the like.
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DK15032C
(en)
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Apparatus for Forming Bottlenecks.
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DK17248C
(en)
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Hydraulic Apparatus for Transmitting Motion.
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DK17747C
(en)
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Hydraulic Apparatus for Transmitting Motion.
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DK16936C
(en)
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Hydraulic Apparatus for Transmitting Motion.
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AT63558B
(en)
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Device for extinguishing coke.
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DK21712C
(en)
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Device by bracket-shaped Teacher.
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DK21713C
(en)
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Device by bracket-shaped Teacher.
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CH67615A
(en)
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Projection apparatus
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