Young S. Han

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Douglastown, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Swivel lock assembly for use in ringbinders and the like
- Patent number 5,265,967
- Issue date Nov 30, 1993
- U.S. Ringbinder Corp.
- Young S. Han
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER