公开(公告)号：US06506058B1

公开(公告)日：2003-01-14

申请号：US09744207

申请日：2001-03-29

Applicant: Genaro Aldrete Frances

Inventor： Genaro Aldrete Frances

IPC: B43L100

CPC classification number: B43L1/06

Abstract: The present invention relates to a writing board with reference lines which are invisible from a distance, and to a process for its fabrication. The board is comprised of at least one support substrate (110) and one writing substrate (120) which are interconnected, wherein the reference lines (130) are so printed that they remain inserted between the support substrate and the writing substrate thereby increasing their durability. The reference lines (130) can be clearly seen by a person which is close to the writing board, while they are invisible for a person standing far from the board.

Abstract translation: 本发明涉及一种具有从远处看不见的参考线的书写板及其制造工艺。 该板由互连的至少一个支撑基板（110）和一个写入基板（120）组成，其中参考线（130）被印刷，使得它们保持插入到支撑基板和书写基板之间，从而提高其耐用性 。 参考线（130）可以靠近写字板的人清楚地看到，而对于远离董事会的人来说，它们是不可见的。

公开(公告)号：US20100310816A1

公开(公告)日：2010-12-09

申请号：US12681135

申请日：2008-09-30

Applicant: Genaro Aldrete-Frances

Inventor： Genaro Aldrete-Frances

IPC: B32B3/26 ,  B32B3/06

CPC classification number: B43L1/00 ,  B43L1/04 ,  B43L3/001 ,  Y10T428/24017 ,  Y10T428/249976

Abstract: A device to make annotations on a removable or fixed background is described, over which it is desirable to make annotations leaving it intact; When the background is removable, the device comprises an upper transparent and smooth film, with closed pores to make annotations with dry erase markers and a back cover attached to the upper film leaving an inlet through which the background is inserted, such as pre-printed sheets or radiographies. When the background is fixed, the device also has a mounting tab to be placed on said background.

Abstract translation: 描述了在可拆卸或固定背景上进行注释的设备，通过该设备可以使注释保持不变; 当背景是可去除的时，该装置包括上部透明且平滑的膜，具有封闭的孔以便用干抹布标记进行注释，以及附着到上膜的后盖，留下插入背景的入口，例如预印 床单或放射摄影。 当背景固定时，该装置还具有一个放置在所述背景上的安装片。