IP Library › Granted Patent US 6,434,776
Granted Patent Utility PCT National Stage
US 6,434,776 · Confirmation No. 4905

TUBE SCRAPING DEVICE

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2001-02-21 LET. Miscellaneous Incoming Letter 28 View
2001-02-21 LET. Miscellaneous Incoming Letter 28 View
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Quick Facts
Patent No.
US 6,434,776
App. No.
09/763,378
Filed
2001-02-21
Granted
2002-08-20
Art Unit
1744
PTA
0 days