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100 1 _aOppenheim, Charles
245 0 0 _aThe patent office database on Pergamon InfoLine
650 _aPergamon
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650 _aDatenbank
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650 _aPatentwesen
_93556
773 0 _aWPI. 8(1986),3,185-192.
_wz_WPI
999 _c10046
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