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Telegraph Set Lecture Pattern

Telegraph Set Lecture Pattern

SKU PH1262

    Set of TWO units working model, each unit is mounted on vertical stand. Set of TWO units working model, each unit is mounted on vertical stand, all connections are clearly visible to explain the principle of telegraph. Each unit is workable on 4-6 volts DC.


    ⚠ WARNING
    Cancer and Reproductive Harm - www.p65warnings.ca.gov

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