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024 _a66829
037 _cTextual
040 _aCSL
_beng
_cCSL
041 _aeng
082 _aD6v1:N5, J4
100 _aUsher Abbott Payson
245 0 _aHistory of mechanical inventions
260 _c1954
300 _ap.
_ccm.
650 _aMechanical engineering
942 _hD6v1:N5, J4
_cTEXL
_2CC
999 _c31967
_d31967