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Patents
Patents Assigned to Chanjing Chervon Industry Co., Ltd.
Patents Assigned to Chanjing Chervon Industry Co., Ltd.
Self-leveling laser level
Patent number:
D523363
Type:
Grant
Filed:
July 28, 2004
Date of Patent:
June 20, 2006
Assignee:
Chanjing Chervon Industry Co., Ltd.
Inventor:
Shuming Wu