000 00273nam a2200121Ia 4500
008 250709s9999 xx 000 0 und d
245 _aPATENT JOURNAL MECHANICAL ENGINEERING
260 _c2024-2024
500 _a1 2
500 _a2024
500 _aJAN-JUNE
942 _cBV
999 _c25035
_d25035