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R. W. Mac Company
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Crete, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Locomotive top deck cover support bracket
Patent number
5,784,968
Issue date
Jul 28, 1998
R. W. Mac Company
John Kenneth MacDonnell
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Railway bolster lug
Patent number
4,135,833
Issue date
Jan 23, 1979
R. W. Mac Company
Robert W. MacDonnell
B61 - RAILWAYS
Information
Patent Grant
Replaceable bolster gib arrangement
Patent number
4,092,932
Issue date
Jun 6, 1978
R. W. Mac Company
Robert W. MacDonnell
B61 - RAILWAYS
Information
Patent Grant
Constant contact side bearing
Patent number
3,981,548
Issue date
Sep 21, 1976
R. W. Mac Company
Robert W. MacDonnell
B61 - RAILWAYS