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2017-06-07

Headset-Microphone and Headset-Electrical (Medium Noise Attenuation, Hearing Protective), General Specification for
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2012-09-19

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2018-09-20

HEADSET-MICROPHONE AND HEADSET-ELECTRICAL (MEDIUM NOISE ATTENUATION, HEARING PROTECTIVE), GENERAL SPECIFICATION FOR
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2019-06-28

HEADSET-MICROPHONE AND HEADSET-ELECTRICAL (MEDIUM NOISE ATTENUATION, HEARING PROTECTIVE), GENERAL SPECIFICATION FOR (SUPERSEDING MIL-H-83511)
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2004-03-11

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1978-04-04