Patents Assigned to Appoint - Justia Patents Search

Patents Assigned to Appoint

Ball-operated control device for electronic circuits

Patent number: D340696

Type: Grant

Filed: November 13, 1991

Date of Patent: October 26, 1993

Assignee: Appoint

Inventor: John B. Barrett
Cursor controlling pen

Patent number: D349490

Type: Grant

Filed: November 13, 1991

Date of Patent: August 9, 1994

Assignee: Appoint

Inventor: John B. Barrett