William B. Plummer

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Rochester, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for checking disk identity in a flexible disk recorder
- Patent number 4,578,722
- Issue date Mar 25, 1986
- International Business Machines Corporation
- Jeffrey L. Lovgren
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Blocker for magnetic diskette gripper
- Patent number 4,226,570
- Issue date Oct 7, 1980
- International Business Machines Corporation
- Joseph J. Holecek
- G11 - INFORMATION STORAGE