Patents Assigned to Proptronics Co. - Justia Patents Search

Patents Assigned to Proptronics Co.

Front panel for a simulated electronic component system

Patent number: D297652

Type: Grant

Filed: January 28, 1985

Date of Patent: September 13, 1988

Assignee: Proptronics Co.

Inventor: John C. Columbus
Front panel for a simulated electronic component system

Patent number: D297653

Type: Grant

Filed: September 13, 1984

Date of Patent: September 13, 1988

Assignee: Proptronics Co. an IL Partnership

Inventor: John C. Columbus