00000nam 2200000zi 4500 9.898558 CaOODSP 20221107174855 m o d f cr mn||||||||| 210412e197001 onca o f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- RG31-1/1-1970E-PDF Report on hearing aids. Hearing aids Ottawa : Department of Consumer and Corporate Affairs, January 1970. 1 online resource (80 pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier Consumer research report ; no. 1 Issued also in French under title: Rapport sur les appareils auditifs. At head of title: Interdepartmental Committee on Consumer Affairs, Subcommittee on Hearing Aids. Digitized edition from print [produced by Innovation, Science and Economic Development Canada]. Hearing aids Prices Canada. Hearing aids. Canada. Department of Consumer and Corporate Affairs, issuing body. Rapport sur les appareils auditifs. (CaOODSP)9.898560 Consumer research report ; no. 1. (CaOODSP)9.871868 PDF 2.13 MB https://publications.gc.ca/collections/collection_2021/isde-ised/rg31/RG31-1-1-1970-eng.pdf