ballpoint (pen)

Ballpoint pen
Ballpoint pen
Ballpoint pen
Ink follower for aqueous ballpointg pen using gel-like materisl and solid piece
The Pen & Ink Playbook: 44 Exercises to Sketch, Dip, and Drizzle with Ballpoint, Pen & Ink
Forensic classification of ballpoint pen inks using high performance liquid chromatography and infrared spectroscopy with principal ...
HPLC analysis of ballpoint pen inks stored at different light conditions
A GC/MS study of the drying of ballpoint pen ink on paper
Organic and inorganic discrimination of ballpoint pen inks by ToF-SIMS and multivariate statistics
Ballpoint pen inks: characterization by positive and negative ion-electrospray ionization mass spectrometry for the forensic examina...
Sensory testing in leprosy: comparison of ballpoint pen and monofilaments.
Differentiation of blue ballpoint pen inks by positive and negative mode LDI-MS
Analysis of ballpoint pen inks by field desorption mass spectrometry