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可能有关键词的缘故,中午发的到现在也没登出来。下面是从某著名百科里摘录的。
But by the early 1930s the Duofold’s design was viewed by the manufacturer as rather outmoded. Parker launched its replacement, the Vacumatic in 1933, and the Duofold line was moved to second tier, even though it followed closely the Vacumatic's design with slimmer profile, streamlined look and vacumatic filling mechanism. Duofolds remained popular in Europe being produced well into the 1960s in varying sizes and shades, and were revived in the 1980s as Parker's flagship offering once more. In 1988 (to celebrate the 100th anniversary), Parker launched the Duofold Centennial series of Pens (Fountain Pens, Rollerballs and Pencils). Later, they introduced the Duofold International line with models that also evoked the classic Duofold design, though smaller than the Centennial. There are also differences in the ink feeding systems, changing from their Button Filling mechanism to a cartridge/converter system. |
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