Computer protocol software for use in allowing postal senders, post offices and postal recipients to exchange mailing information via the Internet, namely information regarding the identity of the sender, the date of mailing, sorting information and response data, which information may be provided through the use of machine-readable codes printed on the mail pieces

'allow':7 'code':51 'comput':1 'data':38 'date':31 'exchang':16 'ident':26 'inform':18,23,35,40 'internet':21 'machin':49 'machine-read':48 'mail':17,33,55 'may':41 'name':22 'offic':11 'piec':56 'post':10 'postal':8,13 'print':52 'protocol':2 'provid':43 'readabl':50 'recipi':14 'regard':24 'respons':37 'sender':9,29 'softwar':3 'sort':34 'use':5,46 'via':19

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