Claims (1)
Claim 1 (Independent)
The ornamental design for a concrete building block as shown and described.
Full Description
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1. Concrete building block
1 . 1 : Perspective
1 . 2 : Front
1 . 3 : Back
1 . 4 : Top
1 . 5 : Bottom
1 . 6 : Right
1 . 7 : Left
1 . 8 : Cross sectional
1 . 9 : Reference view
The broken lines do not form part of the claimed design; reproduction 1 . 8 shows a cross-sectional view of the product taken along the line A-A in reproduction 1 . 2 ; reproduction 1 . 9 is a top reference view showing the claimed design in use.
Citations
This patent cites (83)
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