Revision history of "Classification of gas masks by the method of protection"

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  • curprev 16:00, 27 November 2021‎ MilaEryomina talk contribs‎ 1,093 bytes +1,093‎ Created page with "Having clarified the situation with the classical classification of gas masks, let's move on to a more complex differentiation. By functionality, gas masks are divided into: -..."
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