|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||220/266 ; 220/270 ; 220/276 ; 220/32|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 15 인용 특허 : 0|
A box for equipment to be built into a wall or the like comprises at least one inlet provisionally closed by a knock-out. The knock-out is delimited by a line of reduced strength. A pull member is fastened to it to facilitate the application of a traction force to it.
Box for equipment to be built into a wall, comprising at least one inlet, a knock-out provisionally closing off said inlet, at least one line of reduced strength delimiting said knock-out, a pull member permanently affixed to said knock-out and protruding substantially outwardly from said knockout, and said pull member being adapted to be gripped and pulled to remove said knockout, said pull member being joined to a tongue defined by said at least one line of reduced strength delimiting said knock-out, said at least one line of reduced strength being pro...