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One exception was the Pentel 350 E, possibly Pentel's first mechanical pencil, [14] which could only hold a single stick of 0.5 mm lead. Refill leads can be bought in small tubes and inserted into the barrel as needed.
Pentel Co., Ltd. (ぺんてる株式会社, Penteru Kabushiki Gaisha) is a privately-held Japanese manufacturing company of stationery products. The name comes from one of their first widely known products and is a portmanteau of the English words pen and pastel. [5] [6] Pentel is also the inventor of non-permanent marker technology.
Erasers may be free-standing blocks (block and wedge eraser), or conical caps that can slip onto the end of a pencil (cap eraser). A barrel or click eraser is a device shaped like a pencil, but instead of being filled with pencil lead, its barrel contains a retractable cylinder of eraser material (most commonly soft vinyl). Many, but not all ...
In 1979, Paper Mate introduced the Eraser Mate or Erasermate brand. [6] In the 1980s, Paper Mate invented the Replay 2000 pen, with erasable ink and a rubber at one end. In 2010, Paper Mate introduced "environmentally friendly" biodegradable pens, pencils and erasers. [7] In 2012, Paper Mate introduced the brand InkJoy. [8]
Attached eraser on the left; Pencil lead on the right. On 30 March 1858, Hymen Lipman received the first patent for attaching an eraser to the end of a pencil. [35] In 1862, Lipman sold his patent to Joseph Reckendorfer for $100,000, who went on to sue pencil manufacturer Faber-Castell for infringement. [36] In Reckendorfer v.
That same year Rotring launched its first drawing board, and the "Tikky" mechanical pencil was released in 1979. The "Art Pen", a fountain pen suitable for calligraphy , was launched in 1984. During the decade, Rotring set new subsidiaries in other European countries, while the "600" mechanical pencil was introduced in 1989.