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| Koch Patent RSide | KOCH PATENT - Extremely rare Koch patented tin lamp, marked on font KOCH PAT. APR 18, 1905 OTHERS PENDING MFG W. TUNNESSEN HAZLETON PA, patent covers wick riser awarded to Ferdinand Koch of West Hazleton PA as No. 787,678 on April 18, 1905 and filed on Oct. 25, 1904, ex-John Podgurski collection, unfired condition |  Original Image |
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