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Category:Sheng Chang of Sugar Land TX US

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Sheng Chang

Sheng Chang from Sugar Land TX US has applied for patents in technology areas such as E21B23/14, D07B1/14, H01B7/04 with schlumberger technology corporation.

Patents

Pages in category "Sheng Chang of Sugar Land TX US"

The following 2 pages are in this category, out of 2 total.

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