Title:
Hollow frangible block
United States Patent 2727382
US Patent References:
/0789732.html
- - 0789732

/1241350.html
- - 1241350

Building-block construction
- - 1566988


Inventors:
Karl, Kurz
Publication Date:
12/20/1955
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Assignee:
Sudbau, Suddeutsche Bautechnik
Primary Class:
52/98
Other Classes:
52/606, 428/188
International Classes:
E04B2/02
Foreign References:
CH154737A
CH155358A