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Siegfried Sigott
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last 30 patents
Information
Patent Grant
Device for transferring the cup heap of debris onto a drift conveyi...
Patent number
4,776,445
Issue date
Oct 11, 1988
Voest-Alpine Aktiengesselschaft
Alfred Zitz
E21 - EARTH DRILLING MINING
Information
Patent Grant
Hydraulic mine prop
Patent number
4,404,893
Issue date
Sep 20, 1983
Vereinigte Osterreichische Eisen- und Stahlwerke - Alpine Montan Aktiengesell...
Siegfried Sigott
E21 - EARTH DRILLING MINING
Information
Patent Grant
Device for provisionally consolidating a gallery and suitable conso...
Patent number
4,263,005
Issue date
Apr 21, 1981
Vereinigte Osterreichische Eisen-und Stahlwerke - Alphine Montan Aktiengesell...
Siegfried Sigott
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cutting machine
Patent number
4,236,627
Issue date
Dec 2, 1980
Vereinigte Osterreichische Eisen- und Stahlwerke - Alpine Montan Aktiengesell...
Siegfried Sigott
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Equipment for removing dust particles from an air stream
Patent number
4,152,126
Issue date
May 1, 1979
Vereinigte Osterreichische Eisen- und Stahlwerke - Alpine Montan Aktiengesell...
Emanuel Strahsner
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pressure relief valve for hydraulic mine supporting elements
Patent number
4,111,227
Issue date
Sep 5, 1978
Vereinigte Osterreichische Eisen- und Stahlwerke - Alpine Montan Aktiengesell...
Siegfried Sigott
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for cutting minerals and cutting machine
Patent number
4,111,488
Issue date
Sep 5, 1978
Vereinigte Osterreichische Eisen- und Stahlwerke - Alpine Montan Aktiengesell...
Siegfried Sigott
E21 - EARTH DRILLING MINING