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Long Xu Patents |
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Inventor: Xu; Long
Address: Woodhaven, NY
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5813049 |
Welding helmet |
September 29, 1998 |
| This invention is focused to overcome the common deficiencies in welder's helmets. The welding helmet's view window (Mother Window) consists of two (2) smaller view windows. The upper portion of the mother window [22] is a tiny strip view window [14] which provides a better view for user |
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