Document ZJwrgm3OmV4wBKe0yVJG31gXL

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R. N. WHEti-tit* *Sk. ' >y/s'h }ju*^yU4^ T)i following respiratory protective device was approved during May 1972: ] .if Untie! Co. fi/ 10 df sposaMo dust. rcrp i niter f nr protection against pneutnoconio.sis .h,il i il'rosir. producing dust;--. Approval No. 'lT-.HC.-n2 Issued to 3H Company, t oiiu .e r r i ,t 1 lope f* f.itt Wrap f)f vision, 3M Center , St. Paul, Minnesota 53101," Hay .'A, V>/2. littery '/V (TC- 2 /C ~/yoJ 5 /(Ju /Yfo ^tlk^Y~C- p JC -/</>> `i 'M C<>0 " (7Z. ~?/C-/CSj l'tXv <&**/ Z& "COli/i a^f~ t> /. / ucc 010946