000
00289nam a2200121Ia 4500
008
220811s9999 xx 000 0 und d
245
_a
PATENT JOURNAL ELECTRONIC INSTRUMENTATION
260
_c
2020-2021
500
_a
"2020 , 2021"
500
_a
"4,1,2"
500
_a
OCT-JUN
942
_c
BV
999
_c
23709
_d
23709