Title:
Wall of building blocks
Document Type and Number:
United States Patent 2826906

Inventors:
Rice, William A.
Publication Date:
03/18/1958
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Referenced by:
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Assignee:
Rice, William A.
Primary Class:
52/585.100
Other Classes:
256/19, 160/229.100, 52/606, 52/270
International Classes:
A63H33/08; E04B2/16; E04B2/02; A63H33/04; E04B2/14
US Patent References:
0916687
1630698Concrete building unit
Foreign References:
CH215690A
GB554318A
GB579345A




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