text: He had several patents on his conscience already : an automatic cork opener for wine in the indicative state , a portable set of board games for solving personality problems , a wallet with a mini-device for the duplications of 100 zloty bills , and a piece of equipment ' the day after ' used to irretrievably eliminate from the time-space continuum days burdened with a hangover .
  
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  He had been dwelling on his patents for a long time .