000 00363nam a2200133Ia 4500
008 211214s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aNeeteson, F A
245 0 _aVacuum valves in pulse technique
260 _bCleaver-Hume Press Ltd
_aLondon
_c1955
300 _avi, 170 p.
653 _aEngineering
942 _c1
999 _c55873
_d55873