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A technical pen is a specialized instrument used by an engineer, architect, or drafter to make lines of constant width for architectural, engineering, or technical drawings. Technical pens may use either a refillable ink reservoir or a replaceable ink cartridge.
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technical pen ink pens line would used drafting made use paper film width tubes brands also produced set thickness nibs
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Technical pen | is a | specialized instrument used by an engineer | 0.90 | text |
| sapphire | instance of | more expensive nibs were equipped with tubes made of tungsten carbide or with their tips made of synthetic precious stones | 0.80 | text |
| to slow their wear on hard surfaces | instance of | more expensive nibs were equipped with tubes made of tungsten carbide or with their tips made of synthetic precious stones | 0.80 | text |
| Technical pen | related to Brands | In | 0.60 | section |
| Technical pen | related to Brands | United States | 0.60 | section |
| Technical pen | related to Brands | WRICO | 0.60 | section |
| Technical pen | related to Brands | Leroy | 0.60 | section |
| Technical pen | related to Brands | Koh-I-Noor | 0.60 | section |
| Technical pen | related to Brands | Each | 0.60 | section |
| Technical pen | related to Brands | And | 0.60 | section |
| Technical pen | related to Brands | US | 0.60 | section |
| Technical pen | related to Brands | For | 0.60 | section |
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