File:FDD patents collage.png
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 00:23, 10 February 2015 | | 2,900 × 2,610 (80 KB) | commons>Mikhail Ryazanov | {{Information |Description= {{en|Drawings from IBM Floppy Disk Drive Patents}} |Source= [http://www.google.com/patents/US3668658 Magnetic record disk cover US 3668658 A], Fig. 2,<br/> [http://www.google.com/patents/US3678481 Data storage apparatus empl... |
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