What technological advancement did Parker Pens incorporate into 'The Jotter' to achieve better reliability in 1954?

Answer

The use of tungsten-carbide textured ball-bearings

Parker's Jotter signaled a shift toward dependable quality at a reasonable price, largely due to the integration of tungsten-carbide ball-bearings, which improved the consistency of ink distribution.

What technological advancement did Parker Pens incorporate into 'The Jotter' to achieve better reliability in 1954?
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