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For the Inventor, By the Inventor

Hong Kong, China

Choon Nang Electrical Appliance


USPTO Granted Patents = 2

Forward Citations = 59

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2 inventors (with patents filed for the assignee):

goldMedal Ping Hay Heun (2 out of 43 patents)

silverMedal Tat Nin Lui (1 out of 23 patents)


2 patents:

1. 6506006 - Power hand tool having a detachable handle (2003-01-14),
2. D467483 - Electric drill (2002-12-25),
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USPTO Data Jan 1 1976 - Jan 6 2026

2 Patents

#1,156 in Hong Kong

#10,051 in China

...
Hong Kong, China

Choon Nang Electrical Appliance

Forward Citations = 59

2 inventors:

goldMedal Ping Hay Heun (2 out of 43 patents)

silverMedal Tat Nin Lui (1 out of 23 patents)

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