original Patent - Eugen Warth in Heinitz b. Neunkirchen , 1883 , Transportschnecken an Lucop'schen Mühlen !!!

Original Patent - Eugen Warth In Heinitz B. Neunkirchen , 1883 ,  Transportschnecken An Lucop'schen Mühlen !!! - Kreis Neunkirchen
Original Patent - Eugen Warth In Heinitz B. Neunkirchen , 1883 ,  Transportschnecken An Lucop'schen Mühlen !!! - Kreis Neunkirchen
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