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2013-05-23 12:21
求翻译：John Brinsmead, born in Devon in 1814, established himself in London as a piano maker in 1836. In 1861 his sons John and Edgar joined him and the firm became John Brinsmead and Sons in 1870. In London they exhibited a grand with an inverted escapement action. Also on the 6th March 1868 they took out a patent (No. 774) 是什么意思？ 待解决
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John Brinsmead, born in Devon in 1814, established himself in London as a piano maker in 1836. In 1861 his sons John and Edgar joined him and the firm became John Brinsmead and Sons in 1870. In London they exhibited a grand with an inverted escapement action. Also on the 6th March 1868 they took out a patent (No. 774)
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