| 摘要 |
A pen with a scanner pen head and a twist switch comprised of a writing pen, an upper penholder section, a twist switch and a light emission device; a chamber containing three gradations in the upper penholder section to receive penetration of a guide pin from a plunger in the upper penholder section with the lower end of the plunger linked to the upper end of the writing pen so to control the plunger to rise to retract or to descend to expose a refill for writing purpose.
|
