- All sections
- G - Physics
- G06K - Graphical data readingpresentation of datarecord carriershandling record carriers
- G06K 21/02 - Information retrieval from punched cards designed for manual use or handling by machine Apparatus for handling such cards, e.g. marking or correcting in which coincidence of markings is sensed mechanically, e.g. by needle
Patent holdings for IPC class G06K 21/02
Total number of patents in this class: 1
10-year publication summary
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Principal owners for this class
| Owner |
All patents
|
This class
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|---|---|---|
| The Board of Trustees of the Leland Stanford Junior University | 6600 |
1 |
| Other owners | 0 |