WO200220428-A1  DATABASE WPI Week 197537, Derwent Publications Ltd., London, GB; Class Q35, AN 1975-K2473W, XP002968300 & SU 442 131 A (IZRAILEVICH B M) 15 October 1974;  DATABASE WPI Week 197604, Derwent Publications Ltd., London, GB; Class Q35, AN 1976-A8183X, XP002968299 & SU 436 002 A (BABENKO N P) 03 July 1975;  DATABASE WPI Week 197643, Derwent Publications Ltd., London, GB; Class Q35, AN 1976-K4180X, XP002968298 & SU 484 150 A (PODKOPAEV P A) 10 March 1976;  DATABASE WPI Week 197730, Derwent Publications Ltd., London, GB; Class Q35, AN 1977-G2456Y, XP002968264 & SU 540 793 A (SADON LEAD-ZINC COM) 29 December 1976;  DATABASE WPI Week 198032, Derwent Publications Ltd., London, GB; Class Q35, AN 1980-G8933C, XP002968263 & SU 703 459 A (DNEPRODZERZHINSK IN) 15 December 1979;  DATABASE WPI Week 198122, Derwent Publications Ltd., London, GB; Class Q35, AN 1981-F0620D, XP002968262 & SU 765 165 A (DNEPR METAL EQUIP) 29 September 1980;  DATABASE WPI Week 198348, Derwent Publications Ltd., London, GB; Class Q35, AN 1983-831613, XP002968261 & SU 992 372 A (DNEPROPETROVSK ARTEM MIN) 05 February 1983;  DATABASE WPI Week 199835, Derwent Publications Ltd., London, GB; Class C04, AN 1998-412063, XP002968260 & RU 2 101 267 C1 (SINELNIKOV) 10 January 1998;  DATABASE WPI Derwent Publications Ltd., London, GB; Class C04, AN 1998-412063/35 & RU 2 101 267 C1 (SINELNIKOV) 10 January 1998;  DATABASE WPI Derwent Publications Ltd., London, GB; Class Q35, AN 1975-K2473W/37 & SU 442 131 A (IZRAILEVICH B M) 15 October 1974;  DATABASE WPI Derwent Publications Ltd., London, GB; Class Q35, AN 1976-A8183X/04 & SU 436 002 A (BABENKO N P) 03 July 1975;  DATABASE WPI Derwent Publications Ltd., London, GB; Class Q35, AN 1976-K4180X/43 & SU 484 150 A (PODKOPAEV P A) 10 March 1976;  DATABASE WPI Derwent Publications Ltd., London, GB; Class Q35, AN 1977-G2456Y/30 & SU 540 793 A (SADON LEAD-ZINC COM) 29 December 1976;  DATABASE WPI Derwent Publications Ltd., London, GB; Class Q35, AN 1980-G8933C/32 & SU 703 459 A (DNEPRODZERZHINSK IN) 15 December 1979;  DATABASE WPI Derwent Publications Ltd., London, GB; Class Q35, AN 1981-F0620D/22 & SU 765 165 A (DNEPR METAL EQUIP) 29 September 1980;  DATABASE WPI Derwent Publications Ltd., London, GB; Class Q35, AN 1983-831613/48 & SU 992 372 A (DNEPROPETROVSK ARTEM MIN) 05 February 1983