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100 1 _aDerday, Eckhard
700 1 _aMayer, Norbert
245 0 0 _aThe electronic patent information system PATIS of the German Patent Office :
_bplanning and realization
650 _aPATIS
_93572
650 _aPatentdokumentation
_93575
650 _aDeutschland
_9770
773 0 _aWPI. 14(1992),1,26-31.
_wz_WPI
999 _c3611
_d3611