Home Blog Tianrun Crankshaft Obtained Patent For Six Utility Models

Tianrun Crankshaft Obtained Patent For Six Utility Models

Release time : 2015-06-12 09:56:09
Tianrun Crankshaft Co., Ltd proclaimed that they have applied for the patent of six utility models on Nov. 28th, 2008 and recently they received the utility model patent certificates issued by National Intellectual Property Bureau. The six utility models include steel ball blocked hole driver, turnover vehicle traction device, crankshaft detecting bracket position device, load-carrying vehicle for railway running, eccentric hole fixture for drilling crankshaft flange, and crankshaft delivery support device. The valid period of the patent is 10 years and it was calculated from the date when it was applied for.