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Dossier
PENCIL SHARPENER
InventionPending
2views
§ Ⅰ
Dossier Overview
Applicant
SDI CORPORATION
Inventor
CHENG, Che-Chang
Filing Date
Jan 16, 2025
Publication Date
Jan 6, 2026
IPC Classification
B43LB43L
CPC Classification
B43LB43L
External Resources