| 摘要 |
<p>CONDITIONALLY SELF COPYING STATIONERY: Conditionally self-copying stationery is provided wherein a carbon copy of handwritten material can be made dependently upon the attitude of insertion of a copy sheet (16) . The copy sheet (16) has a carbon back coating (54) on one face thereof and each of the writing sheets in a pad (10) has a carbon front coating (52) on the upper surface thereof. Dependently upon whether the copy sheet (16) is inserted such that its carbon back coating (54) makes contact with a carbon front coating (52) or not, so a carbon copy is selectably made or not made. The copy sheet (16) is the conventional writing guide found in writing pads, and is printed on both sides with writing guidelines (26). (FIGURE 1, 5A, 5B)</p> |
