000 00275nam a2200121Ia 4500
008 220811s9999 xx 000 0 und d
245 _aPATENT JOURNAL MECHANICAL ENGINEERING
260 _c2019-2019
500 _a"3,4"
500 _a2019
500 _aJULY-DEC
942 _cBV
999 _c23632
_d23632