Hearing protectors

Surgery – Truss – Pad

Patent

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Details

A61F 1102

Patent

active

044612907

ABSTRACT:
There is disclosed herein a hearing protector structure comprising a generally U-shaped spring headband and a pair of ear canal obturating elements articulatingly affixed to the end portions of the headband. The hearing protector of the invention is possessed of the characteristics of light weight and comfort combined with superior sound attenuation performance.

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patent: 4023642 (1977-05-01), Korn
patent: 4060080 (1977-11-01), Akiyama
patent: 4160449 (1979-07-01), Wade
patent: 4215683 (1980-08-01), Lundin et al.
patent: 4253452 (1981-03-01), Powers et al.

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