You Searched for - IS 13109 : Part 4
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    IS 13109 : Part 4 : 1991     (Reaffirmed Year : 2020 )

    electronic equipment/systems for use in coal and metaliferrous mines:Part 4 Requirements for sound powered magneto telephone systems

    Technical Committee : LTD 8
    Status : Active

    No. of Amendments : 0
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