| 81 =S=> BGB 453. 1 The provisions on the purchase of things apply with the necessary modifications to the purchase of rights and other objects .
 =S=> BGB 453. 2 The seller bears the costs of creation and transfer of the right .
 =S=> BGB 453. 3 If a right comprising the right to possession of a thing is sold , the seller is obliged to deliver the thing to the buyer free of material and legal defects .
 
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