Title:
BUILDING BOARD FOR BUILDING HOUSE MODELS ON A MODULE SYSTEM
United States Patent 3527004
Inventors:
Sorensen, Jens Ole
Publication Date:
09/08/1970
Assignee:
Sorensen, Jens Ole
Other Classes:
D25/158, 446/476, 52/314, 52/284, 446/85, 52/105, D05/53
International Classes:
A63H33/04; A63H33/06; E04C2/30
US Patent References:
| 3119154 | Interchangeable construction elements and method of using same | | | |