Place+that+the+clause+has+character+of+autonomy,+the expressive,+which is+third+respect+to the+contract,+can+use it+only in+in+virtue+a+agreement+with+the+credit e+that,+being+direct+ad+extend+the+effects+of the original+pact+compromise,+not+can+derive+from the+mere+intake+of the obligation+others+perfected+ For+facts+conclusive,+necessary+a+act+respectful+of the+requirements+of+form+imposed+by art.+807+of the Italian Civil Code+proc.,+Impayed+the+question+if,+as+support o+with+reference+to the+assignment+of+credit,+the+clause+remains+effective+a+advantage+of the+debtor+original+and+if these these+can+however oppose it+to the expander.