Masonry inspection block

Static structures (e.g. – buildings) – Opaque stonelike module – With traversing passage

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Details

52421, 52561, 52306, 52607, E04B 104

Patent

active

050637231

ABSTRACT:
A concrete construction block having at least one or more hollow cores or open cells and wherein an opening is molded between one cell and the outer face of the block and which opening is defined by edges having opposing outermost flanges which function to retain an inspection window seated within the core therebetween.

REFERENCES:
patent: D266363 (1982-09-01), Santos
patent: 1065762 (1913-06-01), Ainsworth et al.
patent: 1302667 (1919-05-01), Jones
patent: 2272061 (1942-02-01), Drake
patent: 3123244 (1964-03-01), Amundson
patent: 3674913 (1972-07-01), Yates
patent: 4729540 (1988-03-01), Rozema
Advertising Flyer, "Florida Rock Industries", Pre Cut Block, 5/90.

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