Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 3, 2007
Patent Application Number
10467416
Date Filed
February 6, 2002
Patent Primary Examiner
Patent abstract
A marker pen comprises a tubular housing from one end of which protrudes a first fluid retaining nib replenished by fluid such as an indicator ink present in a first chamber positioned within the housing, and a second fluid retaining nib which also protrudes from the aforesaid end of the housing and is replenished by fluid such as an eradicator fluid present in a second chamber positioned within the housing. The protruding nibs are spaced one from the other.
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