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Daniel R. Disk
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Murrysville, PA, US
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last 30 patents
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Patent Grant
Clamp for railroad coupler head
Patent number
6,135,665
Issue date
Oct 24, 2000
Union Switch & Signal, Inc.
Richard P. Alfieri
B61 - RAILWAYS
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Patent Grant
Traffic control system utilizing on-board vehicle information measu...
Patent number
5,332,180
Issue date
Jul 26, 1994
Union Switch & Signal Inc.
Robert A. Peterson
B61 - RAILWAYS