000 00289nam a2200121Ia 4500
008 220811s9999 xx 000 0 und d
245 _aPATENT JOURNAL ELECTRONIC INSTRUMENTATION
260 _c2020-2021
500 _a"2020 , 2021"
500 _a"4,1,2"
500 _aOCT-JUN
942 _cBV
999 _c23709
_d23709