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Improvement in Wood Block and Parquet Floors.
Improvement in Wood Block and Parquet Floors.
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机译:改善木地板和镶木地板。
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摘要
23,062. Pozzuoli, V. Oct. 13. Pins, dowel and like. -A flat metal key li having two prongs on one side and a plain back is used for connecting together wooden floor-blocks.
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