Construction block

Building units and construction elements – Architectural stock material – Construction block or brick type

Design Patent

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Design Patent

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D0512784

CLAIM:
The ornamental design for the construction block, as shown and described.

REFERENCES:
patent: 2281003 (1942-04-01), Henson et al.
patent: 2462289 (1949-02-01), Rochow
patent: D276075 (1984-10-01), Rassias et al.
patent: D276076 (1984-10-01), Rassias et al.
patent: D340997 (1993-11-01), Harrison
patent: D342580 (1993-12-01), Harrison
patent: 5771654 (1998-06-01), Moore et al.
patent: D461567 (2002-08-01), Ogawa
patent: D498002 (2004-11-01), Ogawa et al.
Pictorial magazine, vol. 34, No. 7, 1978: customized concrete masonry block used in the restored Palace of Fine Arts Exploratorium, City of San Francisco, USA.

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