Document 82dyDR7ExramKZ7koZ9gGbpod

1 occurred. Page 295 2 BY MR. RUCKDESCHEL: 3 Q Okay. 4 A I don't want to characterize it as a time of 5 substantial grinding. 6 Q I didn't think you did. 7 A The best evidence for supporting my argument is 8 really the time frame of when the epidemiology data 9 were collected and analyzed. That is to say, those 10 people in those studies were generally working in 11 the '50s, '60s and '70s. And that is certainly the 12 time when grinding would have been more common. But 13 I'll just say for the purposes of answering your 14 question for the 2003 paper. 15 R'delsperger et al., in '86 mentions that his 16 mechanics are involved in grinding and turning of brake 17 linings as well as blowing out of brakes. Johnson, 18 Zumwald and Roberts in their January 29th, 1979 report 19 mention that they were looking at service operators at 20 least in Facility G and maybe others that involved pad 21 grinding, riveting and punching. It was a truck 22 facility. And I expect, although I haven't looked at 23 it more carefully, I think there is going to be other 24 grinding occurring there. 25 And then in Johnson '76 which is the one I ESQUIRE DEPOSITION SERVICES (415) 288-4280