1. That same year, he also established the Gestetner Cyclograph Company to produce duplicating machines, stencils, styli, ink rollers and related products.

2. Sleeves, folios, cases and stands specifically adapted for use with electronics accessories, chords, cables, plugs, adaptors, styli, headphones, microphones, keyboards, mice, and trackpads

3. Adaptors, extensions, joints, shanks, adjusting plates, styli, holders, radio transmission apparatus, inductive transmission apparatus, optical transmission apparatus, contact modules, interfaces, probe heads, all for measuring probes