CH195295A
(en)
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Kötzerspulmaschine.
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SU47152A1
(en)
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The method of obtaining azo dyes
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SU45927A1
(en)
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The method of producing acetylene
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SU45920A1
(en)
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The method of obtaining yellow blue
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SU46672A1
(en)
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The method of obtaining sulfitellulose tanning extracts
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SU44615A1
(en)
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The method of producing diazo color
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SU46655A1
(en)
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The method of preparation of the surrogate oil.
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SU48140A1
(en)
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Method of forming insoluble azo dyes on fibrous materials
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SU46011A1
(en)
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The method of producing glue
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SU44680A1
(en)
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The method of obtaining plastic
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DK51649C
(en)
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Snaplaas.
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DK53554C
(en)
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Kanaldyne.
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ES143016A1
(en)
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Procedure for obtaining azo dyes.
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ES138937A1
(en)
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Procedure for obtaining dyes.
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GR5413B
(en)
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NEW TYPON TYPE (STYPOCHONTON).
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ES132554A1
(en)
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A procedure for the preparation of azo dyes, mixed chromifers.
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ES139740A1
(en)
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Procedure to produce monoazo dyes.
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DK53031C
(en)
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Kettle.
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DK52087C
(en)
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Wood connection.
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ES4091Y
(en)
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Combined letter-envelope.
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DK53380C
(en)
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Arkanlægger.
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DK51288C
(en)
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Ajlnedfælder.
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ES3796Y
(en)
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Swing-armchair.
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DK54892C
(en)
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Gliplaas.
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DK53621C
(en)
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Vaterpas.
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