Rotary blotter

Rotary brush flap closer

Rotary knock type mechanical pencil

Rotating envelope opening finger

Rotating head

Rotative inserting unit for documents and sheets of paper,...

Rule protractor

Ruling engine

Sabotage-proof marking instruments and elements therefor

Safety compass

Safety compass

Screw adjustment mechanism with pre-set backlash

Scribing compass for marking logs for notching and fitting

Scrollable drafting surface reinforced laterally with...

Sealing device for a mailing machine

Selectably combinable multicolor modular marker and kit

Selectively self-illuminating writing instrument

Self adjusting scanner apparatus

Self-sealing retractable writing instrument

Shaped pen