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Patent applications and USPTO patent grants for Lee; Beum Jae.The latest application filed is for "leadless free-cutting copper alloy and method for producing the same".
Patent | Date |
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Leadless free-cutting copper alloy and method for producing the same Grant 9,840,758 - Lee , et al. December 12, 2 | 2017-12-12 |
Leadless Free-cutting Copper Alloy And Method For Producing The Same App 20140248175 - Lee; Beum Jae ;   et al. | 2014-09-04 |
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