000 00249nam a2200109Ia 4500
008 160710s1937 xx 000 0 und d
100 _aCOMBER A.W
245 _aMAGNESITE AS A REFRACTORY
260 _bGRIFFINS
_c1937
300 _a124
942 _2ddc
_cB
999 _c4108
_d4108