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Drop-weight and tubular writing instrument
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Ink dropper closure
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Automatic drafting apparatus
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Pressure balanced stylographic pen
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Stand for writing devices
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Portable alphanumeric and symbol drafting device
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Process and apparatus for automatic drafting devices
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Ink compensating chamber for scriber
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Sealing gasket for a capillary pen cover
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Capillary tube pen point
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Cover for scriber
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Method for forming a tubular writing pen
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Drawing method and drawing instrument
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Venting device for stylographic pens
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Cleansing receptacle for capillary writing pen parts
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Package for automatic pencil leads
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