Anti-theft manhole cover

Application Number: 00107112
Application Date: 2000.04.16
Publication Number: 1318674
Publication Date: 2001.10.24
Priority Information:
International: E02D29/14
Applicant(s) Name: Wang Yue
Inventor(s) Name: Wang Yue;Hu Jiajie;Wang Yu
Patent Agency Code: 00000
Patent Agent:
Abstract An anti-theft sewer manhole cover is designed with concealed pin to prevent prizing open by the stranger.