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Walter L. Calhoun
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Chagrin Falls, OH, US
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Patents Grants
last 30 patents
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Patent Grant
Electric hydraulic catalyst loading and unloading device and method...
Patent number
9,896,308
Issue date
Feb 20, 2018
The Babcock & Wilcox Company
Norman D Nelson
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Patents Applications
last 30 patents
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Patent Application
ELECTRIC HYDRAULIC CATALYST LOADING AND UNLOADING DEVICE AND METHOD...
Publication number
20150098772
Publication date
Apr 9, 2015
Norman D. Nelson
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL