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Ray Hoyer
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St. John, IN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Electrically operated railroad switch machine
Patent number
6,568,641
Issue date
May 27, 2003
Meridian Rail Information Systems Corp.
Ray Hoyer
B61 - RAILWAYS
Information
Patent Grant
Electrically operated railroad switch machine
Patent number
6,427,950
Issue date
Aug 6, 2002
Meridian Rail Information Systems Corp.
Ray Hoyer
B61 - RAILWAYS
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Patent Grant
Railroad switch stand
Patent number
4,938,438
Issue date
Jul 3, 1990
ABC Rail Corporation
Arthur W. Farrell
B61 - RAILWAYS
Patents Applications
last 30 patents
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Patent Application
Electrically operated railroad switch machine
Publication number
20030025044
Publication date
Feb 6, 2003
Ray Hoyer
B61 - RAILWAYS