Joseph H. Koestner

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Hope Well Junction, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Spacer supports for flexible disk structures
- Patent number 3,969,767
- Issue date Jul 13, 1976
- International Business Machines Corporation
- Donald E. Griffiths
- G11 - INFORMATION STORAGE
Information Patent Grant
Stacked flexible record disk storage apparatus having enhanced disk...
- Patent number 3,940,794
- Issue date Feb 24, 1976
- International Business Machines Corporation
- Donald E. Griffiths
- G11 - INFORMATION STORAGE