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Inventor profile of:

ZONGFA CHENG

City:

NAVAN

Country:

Canada

Published Applications:

1

Last publication date:

2011-12-08

Recent patent applications by CHENG ZONGFA

ZONGFA CHENG from NAVAN, CA has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2011-12-08

US20110299841A1

Internal Power Driven Automatic Backdrop Apparatus

InventorID:

3490613 ⎘