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Box Car Door Fastener and Spark Arrester.

Description: Patent for a new and improved box-car door fastener and spark arrester. This design consists in "the door, the screws extending therefrom, the strips having the inclined slots received on the screws, and provided with the projections, the lever pivoted on the screws outside the strip, stops on the lever to engage the projections, and means--such as cord--for locking the lever" (lines 4-11).
Date: October 19, 1886
Creator: Lynch, Hubbard Calhoun
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