US Patent 7484578 Hole coring system
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Patent abstract
An apparatus for drilling holes in a substrate wherein a mandrel is anchored to the substrate. A hollow drill bit rotates about the mandrel via a drive motor and is a guided along a length of the mandrel.
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US Patent 07484578 Hole coring system US Patent 7484578 Hole coring system
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Patent Number
0748457800
Patent Number
748457800
Edits on 28 Apr, 2023
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Is a
Patent Jurisdiction
Patent Number
074845780
Date of Patent
February 3, 2009
0Patent Application Number
116467610
Date Filed
December 27, 2006
0Official Website
Patent Primary Examiner
Edits on 24 Sep, 2022
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Infobox
Is a
Patent Jurisdiction
Patent Number
074845780
Date of Patent
February 3, 2009
0Patent Application Number
116467610
Date Filed
December 27, 2006
0Official Website
Patent Primary Examiner
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US Patent 07484578 Hole coring system
Infobox
Is a
Patent jurisdiction
Patent number
07484578
Date of patent
February 3, 2009
Patent application number
11646761
Date Filed
December 27, 2006
Patent primary examiner
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