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He Jin Chen
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Taichung, TW
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last 30 patents
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Patent Grant
Hose reel device
Patent number
6,905,087
Issue date
Jun 14, 2005
He Jin Chen
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Patents Applications
last 30 patents
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Patent Application
HAND TOOL WITH ANGLE ADJUSTING MECHANISM
Publication number
20240149408
Publication date
May 9, 2024
YI-FU CHEN
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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Patent Application
Hose reel device
Publication number
20050040274
Publication date
Feb 24, 2005
He Jin Chen
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL