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https://drivepatents.com/patents/1009762 · 31 Aug 2011
The sand spreading device comprises a sand container (2), and a sand outlet (5) with a sand pipe for transportation of sand from the sand container to the sand spreading location. The sand container is formed as interchangeable container. A container recei...
https://drivepatents.com/patents/1013658 · 20 Apr 2011
The insert (102) has a housing (109) with a hollow space (111). An injection chamber (114) and a venturi pipe (115) are provided in the hollow space. A suction channel is provided in the housing, and connects storage container (101) with the injection cham...