The 5-day course covers every aspect of intervention: structured family intervention, executive-style intervention, workplace intervention, invitational-style / process intervention and other variations.
Pencil sharpener. A pencil sharpener (also referred to in Ireland as a parer or topper) is a device for sharpening a pencil's writing point by shaving away its worn surface. Pencil sharpeners may be operated manually or by an electric motor.
A look at the history of pencil sharpeners shows that the Frenchman Bernard Lassimone was the first to get a patent for pencil sharpeners in 1828. Following his invention, other designers made improvements and refinements. The Early Pencil Sharpeners. Pencils had been invented before the sharpener and people used knives to sharpen them. It was a tedious process and the result was uneven. After Lassimoneâs invention, Therry des Estwaux came out with a mechanical sharpener in 1844.