The broken lines show portions of a steel slab reheat furnace skid button that form no part of the claimed design. The zig-zag lines seen in
The broken lines show portions of a steel slab reheat furnace skid button that form no part of the claimed design. The zig-zag lines seen in
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Number | Date | Country | |
---|---|---|---|
Parent | 15974801 | May 2018 | US |
Child | 29654633 | US |