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Answer:
1.1951 AB Tetra Pak is established in Lund Sweden, by Ruben Rausing. It starts as a subsidiary of Åkerlund & Rausing. On May 18, the new packaging system is presented to the press and attracts great attention.
1952 In September, the first Tetra Pak machine for tetrahedron-shaped cartons is delivered to the Lund dairy, Lundaortens Mejeriförening. The packing of cream in 100 ml cartons begins in November.

Explanation:
yan lang po alam ko.hehe