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Sandwell, Inc.
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Alexandria, MN, US
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Patents Grants
last 30 patents
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Patent Grant
Method and apparatus for improving fluid flow and gas mixing in boi...
Patent number
5,121,700
Issue date
Jun 16, 1992
Sandwell, Inc.
Brian R. Blackwell
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Trademark
last 30 trademarks
Information
Trademark
90674480 - SKIDPRO ATTACHMENTS
Serial number
90674480
Registration number
7058173
Filing date
Apr 27, 2021
Sandwell, Inc.
35 - Advertising
Information
Trademark
90293424 - SKIDPRO
Serial number
90293424
Registration number
6551302
Filing date
Nov 2, 2020
Sandwell, Inc.
7 - Machines and machine tools
Information
Trademark
74403635 - SWAN WOOSTER
Serial number
74403635
Registration number
1876907
Filing date
Jun 17, 1993
Sandwell Inc.
37 - Building construction