US Patent 9095939 Method and apparatus for manufacturing magnetic drawing board
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Patent abstract
The present invention provides a method and apparatus for manufacturing a magnetic drawing board having a plurality of areas, each of which is designated with a specific color, with clear border between adjacent areas of different color. The present invention makes use of magnetic force to ensure that magnetic particles of a specific color will be filled into cells designated for that specific color. As a result, the present invention is capable of manufacturing a magnetic drawing board with a clear division of areas of different colors. There is no longer any limitation on the size and shape of the areas of different colors in the present invention.
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US Patent 09095939 Method and apparatus for manufacturing magnetic drawing board US Patent 9095939 Method and apparatus for manufacturing magnetic drawing board
Infobox
Patent Number
0909593900
Patent Number
909593900
Edits on 30 Mar, 2023
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Is a
Patent Jurisdiction
Patent Number
090959390
Date of Patent
August 4, 2015
0Patent Application Number
139549900
Date Filed
July 31, 2013
0Official Website
Patent Primary Examiner
Edits on 28 Sep, 2022
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Infobox
Is a
Patent Jurisdiction
Patent Number
090959390
Date of Patent
August 4, 2015
0Patent Application Number
139549900
Date Filed
July 31, 2013
0Official Website
Patent Primary Examiner
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US Patent 09095939 Method and apparatus for manufacturing magnetic drawing board
Infobox
Is a
Patent jurisdiction
Patent number
09095939
Date of patent
August 4, 2015
Patent application number
13954990
Date Filed
July 31, 2013
Patent primary examiner
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