000 00333nam a22001337a 4500
020 _a0684179067
082 _a608.068 MAC
100 _aMacCKRACKEN, Calvin D
245 _aA handbook for inventors
260 _aunited state of america
_bcalvin DMAcCRACKEN
_c1983
300 _a221p
_bILL.
500 _aINCLUDES INDEX
942 _cBK
999 _c20375
_d20375