| http://www.w3.org/ns/prov#value | - rt in a zone at the sides of the roller of a rolling pin for the roller with the ends of the pin projecting on the two sides of the bracket to each support one of said guide wheels with there being between the wheels and the bracket spacers removable transversally to the pin to free a space for axial running of the guide wheels towards the center of the carriage in such a manner as to be able to s
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