n.a pen that has a small metal ball as the point of transfer of ink to paper

同義詞：ballpointballpoint penBiro

Ball pen
Ball pen
Ballpen
SLIM BALLPEN
Retractable top press ballpen
Retractable twist action ballpen
Ballpen into the Bladder of a Woman Due to Sexual Practice
Ballpen, lunch, money…: What may doctors then now accept?
The parameters of ballpen ink examinations.
Infrared spectroscopy of ballpen paste
Determination of writing sequence of black ballpen by Raman Mapping Spectroscopy
An experimental investigation of infrared luminescence in ballpen and liquid inks /
Spinal anesthesia performance conditions and side effects are comparable between the newly designed Ballpen and the Sprotte needle: ...