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Alf J. Olsen
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Elk Grove Village, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Bridge plate for a mass transit vehicle
Patent number
5,775,232
Issue date
Jul 7, 1998
Vapor Corporation
Fotios Golemis
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Low cost quiet impact printer
Patent number
5,066,150
Issue date
Nov 19, 1991
Xerox Corporation
Egon S. Babler
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Ribbon drive for low cost quiet impact printer
Patent number
5,011,309
Issue date
Apr 30, 1991
Xerox Corporation
Egon S. Babler
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Typewriter cable tensioning mechanism
Patent number
4,678,354
Issue date
Jul 7, 1987
Xerox Corporation
Alf J. Olsen
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Ribbon tension and metering control
Patent number
4,373,824
Issue date
Feb 15, 1983
Xerox Corporation
Alf J. Olsen
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS