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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0350910 (1989-05-12) |
우선권정보 | ZA-0003387 (1988-05-13) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 73 인용 특허 : 5 |
Continuous rolled material is described which is formed as lay flat tubing and which has lines of perforations running transversely to the axis of the material and dividing the material into discrete units. Alternate lines of perforations are sinusoidal lines. There are cuts in these lines of perfor
A roll of extruded continuous lay flat tubing material having longitudinal sides and transverse lines of perforations, wherein each line of perforations is in the form of a wave, and wherein portions of each line of perforations mid-way between crests and valleys of the respective wave are comprised
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