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    Citujúci patent Dátum podania Dátum publikovania Žiadateľ Názov; US2680606 * 7. júl 1948: 8. jún 1954: Bank Limited Martin S: Impact machine for the mining of ...

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    Citing Patent Filing date Publication date Applicant Title; US2504598 * Mar 23, 1948: Apr 18, 1950: Vincent Sheppard William: Coal cutting machine: US3387889*

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    TITLE OF THE INVENTION MINING MACHINE ABSTRACT OF THE DISCLOSURE A haulage system for a mining machine comprises a mining machine mounted on

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    Dec 13, 1977· This invention relates to mining machines and in particular to mining machines including cutter means carried on pivotally mounted booms or arms.

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    Aug. 29, 1933. F. A. LINDGREN MINING MACHINE Filed-March 27, 1930 2 Sheets-Sheet l Aug. 29, 1933- F. A. LINDGREN MINING MACHINE Filed March 27 1930 2 Sheets-Sheet 2 ...

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    Dec 19, 1978· A longwall mining machine is provided with a roller resiliently urged into engagement with a track extending along the longwall face. Sensor means are ...

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