Wang Laboratories, Inc.

Lifeline Systems, Inc.

Polaroid Corporation

David J Privitera

Vincent J Savio

Brian J Matt

Lawrence M Kuba

Mark A Nichols

David L Adriaansen

Stacy L Galbreath

Scanning apparatus

Personal security alarm

A support arm for supporting a computer keyboard on an ordinary desk, the support arm being capable of supporting the keyboard at an ergonomically correct height during use in front of the desk and storing the keyboard out of the way beneath the desk when not in use.

Support arm for computer keyboard

A reversible typing ribbon cartridge has two pairs of pinch roll pairs for moving the ribbon in the direct and inverted positions respectively. When the cartridge is off the typing machine both pinch pairs are engaged with the ribbon, but as the cartridge is installed, a rod penetrates into the cartridge and disengages the pinch pair in the following position while drives engage the ribbon spool and the pinch pair in the leading position.

Reversible ribbon cartridge

Growing community of inventors

Georgetown, MA, United States of America

David J Privitera