Last additions - Communications
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M.S.A. Telecrane Microphone 20 viewsMar 27, 2017
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M.S.A. Junction Box19 viewsMar 27, 2017
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M.S.A. Loudspeaker Transformer16 viewsMar 27, 2017
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M.S.A. Loudspeaker Transformer19 viewsMar 27, 2017
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Millphone "PLS" Fuse21 viewsMar 27, 2017
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"Millphone" Loudspeaker19 viewsMar 27, 2017
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"Millphone" Microphone19 viewsMar 27, 2017
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Top and underside of Unit from Shaftphone Equipment Box - Woodward Iron Co.20 viewsMar 27, 2017
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M-S-A "Telecrane" Foot Switch20 viewsMar 27, 2017
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M-S-A "Telecrane" Loudspeaker Transformer19 viewsMar 27, 2017
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M-S-A "Telecrane" Transmitter-Receiver20 viewsMar 27, 2017
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M-S-A "Telecrane" Equipment Box without Electronic Apparatus19 viewsMar 27, 2017
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M-S-A "Telecrane" Equipment Box showing Electronic Apparatus19 viewsMar 27, 2017
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M-S-A "Telecrane" Equipment Box19 viewsMar 27, 2017
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Minephone Hand Microphone19 viewsMar 27, 2017
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Microphone for Minephone - Adjustable and Extension types20 viewsMar 27, 2017
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Control Station for Millphone19 viewsMar 27, 2017
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Minephone with cover removed to show interior19 viewsMar 27, 2017
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Mine Safety Appliances Minephone20 viewsMar 27, 2017
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Single-Frequency Communication Equipment for Mine Locomotive16 viewsMar 27, 2017
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Single-Frequency Communication Equipment for Mine Locomotive17 viewsMar 27, 2017
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Single-Frequency Communication Equipment for Mine Locomotive16 viewsMar 27, 2017
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Single-Frequency Communication Equipment for Mine Locomotive18 viewsMar 27, 2017
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Single-Frequency Communication Equipment for Mine Locomotive19 viewsMar 27, 2017
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Single-Frequency Communication Equipment for Mine Locomotive35 viewsMar 27, 2017
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