| |
 |
Ackeret Design & Engineering Patents |
|
Assignee: Ackeret Design & Engineering
Address: Ebmatingen, CH
No. of patents: 4
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| D253524 |
Scale |
November 27, 1979 |
|
| D253523 |
Scale |
November 27, 1979 |
|
| 4224604 |
Digital optical display with magnetic code plate indexing |
September 23, 1980 |
| A digital optical display device incorporated in a scale including a movable measuring member, a code plate with opaque and transparent areas, a stationary light source irradiating the code plate, a seven-segment display adjacent the code plate and having light guide inlets receiving |
| 4214391 |
Optical numerical segment display |
July 29, 1980 |
| An optical display presenting a display field at least one digit in a seven segment arrangement, a stack of seven plate elements for each digit and arranged in a stack, a single light source directing light into the light inlet ends of all of the seven plates, a movable shutter element w |
|
|
|
