US Patent 7648308 Frame and corresponding roadway device
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Patent abstract
This frame (2) comprises a bottom plate (22) which has a base (26) which defines a frame support surface (28) which is directed towards an inner side (I) and a skirt (20) which is intended to receive a covering element (4) and which defines an outer side (E). The bottom plate (22) comprises at least one cell (32) which is open towards the inner side (I). Use in frames for manholes.
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Patent Inventor Names
Arnaud Cuny0
Francis Berthon0
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US Patent 07648308 Frame and corresponding roadway device US Patent 7648308 Frame and corresponding roadway device
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Patent Number
076483080
Patent Number
76483080
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Official Website
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Patent Jurisdiction
Patent Number
076483080
Date of Patent
January 19, 2010
0Patent Application Number
116799840
Date Filed
February 28, 2007
0Official Website
Patent Primary Examiner
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US Patent 07648308 Frame and corresponding roadway device
Infobox
Is a
Patent jurisdiction
Patent number
07648308
Date of patent
January 19, 2010
Patent application number
11679984
Date Filed
February 28, 2007
Patent primary examiner
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