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Patent Journal No 9, 01 Sep 2011, Vol 44 (Part 2, 2), Page 55

20110901 - Patent Journal No 9 of 01-Sep-2011, Volume 44 (Part 2 of 2), page 55

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Gazette	Patent Journals, No 9, from 01 September, 2011

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SEPTEMBER 2011 PATENT JOURNAL

57: Method of making an open ended hollow
 concrete element comprising the steps: arranging a
 mould about an essentially horizontal roller shaft, the
 mould comprising a sleeve-shaped mould wall
 defining the outer peripheral shape of the concrete
 element and a first and a second end rim each with
 an inner periphery smaller than the inner periphery
 of the mould wall at respective end and defining the
 end surfaces of the concrete element, the mould is
 rotatably supported by the roller shaft by abutment at
 the inner peripheries of the first and a second end
 rims so that the roller shaft upon rotation defines the
 inner peripheral shape of the concrete elements;

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Patent Journal No 9, 01 Sep 2011, Vol 44 (Part 2, 2), Page 55

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