Writing board with electronic calculator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 17, 2002
Grant Date -
N/A
app pub date -
Aug 8, 2000
filing date -
Aug 17, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A writing board with an electronic calculator and a writing board to which an electronic calculator is installable. The writing board including a case member provided with an opening in a top surface of the case member, and a frame section surrounding the opening is formed on the top surface of the case member. A recording sheet including a microcapsule magnetic sheet is disposed in the case member with a top face of the recording sheet exposed through the opening of the case member. A magnetic member is used for writing on the recording sheet. The writing board further includes a magnetized erasing sheet which is positioned under the recording sheet in parallel with the recording sheet. An erasing button is used in the case member so that writings on the recording sheet can be erased only by depressing the erasing button. An electronic calculator is or can be mounted on the top surface of the case member.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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