The broken lines showing the structure around the inner weld-glass opening is included for the purpose of illustrating a portion of the welding helmet that form no part of the claimed design.
The broken lines showing the structure around the inner weld-glass opening is included for the purpose of illustrating a portion of the welding helmet that form no part of the claimed design.
Number | Date | Country | Kind |
---|---|---|---|
2015 3 0481977 | Nov 2015 | CN | national |
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