01078cam a22003131 4500007291133MiAaHDL20141009010000.0m d cr bn ---auaua811121s1953 dcu 000 0 eng 51620270RDNLM5427085NZ112305173NLM51620270Rsdr-uiuc6409389sdr-miu.990072911330106381(OCoLC)14649120(OCoLC)5427085NLMNLMGQGCGCCITUIUURF300.C81 1953WV 274C799s 1953C 13.4:534Corliss, Edith L. R.Hearing aids.Washington,U. S. Govt. Print. Off.,1953.ii, 18 p.ill.[U. S.] National Bureau of Standards. Circular534Issued as revision of the Bureau's Circular 516 with title: Selection of hearing aids.Mode of access: Internet.Hearing aids.Hearing Aids.Online version:Corliss, Edith L. R.Hearing aids.Washington, U. S. Govt. Print. Off., 1953(OCoLC)63256655100729113320101116101147.020141009010000.020141112165512.02025-01-02T19:09:47Z2025-01-02T18:30:02ZSDR-UIUCUNKNOWNloader.pl-003-020BKsdr-uiuc6409389uiugSDRUIUCuiug.30112106783126UIUv.5346409389UIUUIUC20250102googleuiug.30112106783126v.5341953pdrenMIUGWLA20260301googlemdp.390150775787821953pdren