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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Class Information
Number: 281/4.1
Name: Books, strips, and leaves > Book and leaf > Blotter leaf
Description: Subject matter wherein the additional leaf is made of an absorbent material and is intended to be used for drying a surface that has just been written on in ink by soaking up and excess ink.










Patents under this class:

Patent Number Title Of Patent Date Issued
4270774 Method of making bingo or tombola tickets and article produced thereby Jun. 2, 1981











 
 
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