chinagraph การใช้

• The use of RAF Percival Provost piston and chinagraph crayon.
• The drawings were produced by chinagraph pencil on cell.
• This motor was powered by the hydraulic system normally used by the upper chinagraph and string.
• The top of the bearing plate was designed to be drawn on with a chinagraph pencil so it could serve as a general navigation calculator as well.
• In the days when broadcast studios had a library of LP records, a track which was prohibited from public performance could be defaced by a wavy white or yellow chinagraph line, giving a visible warning to the presenter as well as making that track unusable.