000 00320nam a2200121Ia 4500
008 220216s9999 xx 000 0 und d
100 _aPrendergast John T
245 0 _aCompounding butyl rubber for resistance to compression set
260 _bPlanter
_c1957
300 _a780-784
650 _aButyl rubber
942 _cJS
999 _c56101
_d56101