Steven G. Steele

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Rochester, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Recording apparatus for magnetic disks using both sides of the disk
- Patent number RE29380
- Issue date Aug 30, 1977
- International Business Machines Corporation
- Daniel O. Castrodale
- 360 - Dynamic magnetic information storage or retrieval
Information Patent Grant
Recording apparatus for magnetic disks using both sides of the disk
- Patent number 3,946,439
- Issue date Mar 23, 1976
- International Business Machines Corporation
- Daniel Owen Castrodale
- G11 - INFORMATION STORAGE