John Isaac Hawkins (1772–1855) was an inventor who practised civil engineering. He was known as the co-inventor of the ever-pointed pencil, an early mechanical pencil, and of the upright piano.
John Isaac Hawkins (1772–1855) was an inventor who practised civil engineering. He was known as the co-inventor of the ever-pointed pencil, an early mechanical pencil, and of the upright piano.