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Patent applications and USPTO patent grants for MARUI GALVANIZING CO., LTD..The latest application filed is for "rotor for polishing hollow tubes".
Patent | Date |
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Electrolytic polishing method and device Grant 11,021,807 - Ida , et al. June 1, 2 | 2021-06-01 |
Electrolytic Polishing Method And Device App 20200199771A1 - | 2020-06-25 |
Rotor for polishing hollow tubes Grant 10,246,792 - Ida | 2019-04-02 |
Rotor For Polishing Hollow Tubes App 20170292203 - IDA; Yoshiaki | 2017-10-12 |
Electrode for polishing hollow tube, and electrolytic polishing method using same Grant 9,689,086 - Ida June 27, 2 | 2017-06-27 |
Electrode For Polishing Hollow Tube, And Electrolytic Polishing Method Using Same App 20150159294 - Ida; Yoshiaki | 2015-06-11 |
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