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Scott R. Duncan
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Lake Zurich, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Friction wedge for a railroad car truck having a replaceable wear m...
Patent number
6,691,625
Issue date
Feb 17, 2004
ASF-Keystone, Inc.
Scott R. Duncan
B61 - RAILWAYS
Information
Patent Grant
Railway car truck with a rocker seat
Patent number
6,672,224
Issue date
Jan 6, 2004
ASF-Keystone, Inc.
Hans B. Weber
B61 - RAILWAYS
Information
Patent Grant
Friction wedge for a railroad car truck having a replaceable wear m...
Patent number
6,374,749
Issue date
Apr 23, 2002
NACO, Inc.
Scott R. Duncan
B61 - RAILWAYS
Information
Patent Grant
Pivot pin and retention clip assembly for a railroad car coupler
Patent number
6,062,406
Issue date
May 16, 2000
NACO, Inc.
Scott R. Duncan
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Information
Patent Application
Railway car truck
Publication number
20020152923
Publication date
Oct 24, 2002
Hans B. Weber
B61 - RAILWAYS
Information
Patent Application
Friction wedge for a railroad car truck having a replaceable wear m...
Publication number
20020079279
Publication date
Jun 27, 2002
Scott R. Duncan
B61 - RAILWAYS