00519nam a2200169Ia 4500 210719s1974 xx 000 0 und d eng 621.75 CHOE CHOUDHURY (S K Hajra);BOSE (S K) Elements of workshop technology:machine tools vol II Bombay Asia Publishing House 1974 572 PB 23 Rs Electrical Engineering Engineering Elements ; II ; technology:machine ; tools ; vol ; workshop 216019 216019 0 2 ddc 0 0 ELE AL AL 2020-08-06 General Annual 23.00 0 621.75 CHOE D04655 2021-07-19 00:00:00 2021-07-19 DB