Properties (14)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
patent
|
| gptkbp:abstract |
A system for controlling electrical signals.
|
| gptkbp:applicationNumber |
Serial No. 622,198
|
| gptkbp:assignee |
gptkb:International_Business_Machines_Corporation
|
| gptkbp:citedBy |
US_3,000,000
|
| gptkbp:class |
H01H
|
| gptkbp:fieldOfInvention |
electrical engineering
|
| https://www.w3.org/2000/01/rdf-schema#label |
US 2,555,575
|
| gptkbp:inventor |
gptkb:William_H._McCulloch
|
| gptkbp:issuedOn |
May 29, 1951
|
| gptkbp:priorityDate |
April 12, 1946
|
| gptkbp:relatedTo |
gptkb:US_2,555,574
|
| gptkbp:status |
expired
|
| gptkbp:title |
Electrical Switching System
|