000 00342cam a2200133ua 4500
003 OSt
008 200922b ||||| |||| 00| 0 eng d
082 _a535.5028
_bENG/VA
245 _aVaccum producing equipment /
250 _a1 /
260 _aLondon :
_bEngineering Equipment Users Association ,
_c1961.
300 _a100 ; .
942 _cBK
999 _c7181
_d7181