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Revision of UDC 621.7/9 Wark Shop Practice : Report of FID/C 621 Meetings held at B.S.I. (London) : 21eme Conference de la FID
1954
UDC information
ZS S\".g.T?k3.;r.g':-: .g.brk・ g・.vL ・o7 J・-S6'21.?92.05 Press sb.eet metal worlc ±ng -'f'i"621;791.06 PresE"'ie・i-vreltting generally .. Fbk p'resses (design,'colt.g.timceion),. se'e 621.979 Fot R6Iling and rollingl.tTills. see
doi:10.18919/udc.29.0_21
fatcat:5dwnj3ohynagjfdehsgzl6a4ky