The invention provides an earphone speaker protection device. The earphone speaker protection dev...

• 등록일 : 2019.12.12
• 조회 : 1,915

The present invention relates to a core drill apparatus which is mounted to a working boom of an...

• 등록일 : 2019.12.03
• 조회 : 1,803

本発明は掘削機の作業ブーム対に取り付けて岩盤またはコンクリート構造物を穿孔するコアドリル装置に関し、より詳しくは、掘削機作業ブーム台の端部に取り付けられる作業支持フレームにリングギアと多数個の昇...

• 등록일 : 2019.12.03
• 조회 : 2,494

本高案是关于钻孔装置的,详细地讲是为了穿孔岩盘或混凝土结构物而掀起的挖洞热潮 是关于安装在终端部的核钻装置。 根据本高案,将升降天工比特的升降驱动马达的动作(转速及转速方向)置于挖掘机的驾驶...

• 등록일 : 2019.11.29
• 조회 : 1,452

This is a safety item for attaching a car. In case of a car failure or accident, open the trunk o...

• 등록일 : 2019.04.05
• 조회 : 4,177

Disclosed are an apparatus and method for the seawater pre-treatment to remove salt from seawater...

• 등록일 : 2018.12.18
• 조회 : 1,638

A seawater pre-treatment method is provided that includes: installing a filtration filter in the...

• 등록일 : 2018.12.18
• 조회 : 1,629

The present invention relates to a core drill apparatus which is mounted to a working boom of an...

• 등록일 : 2018.12.05
• 조회 : 1,585

本发明的手提铣床,为输入动作信号,配有操作按钮的主体;上下方向延长. 具备结合上上身的一侧的一对垂直轨道,可上下方向往返传送的竖直板;上数 固定在直板上,旋转铣刀的驱动模式;上端本体固定的底...

• 등록일 : 2018.12.03
• 조회 : 1,666

The present invention relates to a method of fabricating an organic photovoltaic device with impr...

• 등록일 : 2018.10.10
• 조회 : 1,828