Building block having flexible ribs to engage a similar block
United States Patent 3148477
US Patent References:
/0319764.html
- - 0319764
Toy construction block
- - 1894061
Building block
- - 2472363
Toy building blocks and base
- - 2565823
Building construction unit
- - 2699128
/0319764.html
- - 0319764
Toy construction block
- - 1894061
Building block
- - 2472363
Toy building blocks and base
- - 2565823
Building construction unit
- - 2699128
Inventors:
Acton, Bjphirn
Sigvard, Bernadotte
Sigvard, Bernadotte
Publication Date:
09/15/1964
View Patent Images:
Export Citation:
Assignee:
Irma, Fabrikerne AS.
Primary Class:
Other Classes:
D25/113, 52/79.130, 52/591.300, 446/106, D21/500
International Classes:
A63H33/08; A63H33/04
US Patent References:
| 2800743 | Toy building brick |
Foreign References:
| AU128398B | ||||
| GB633055A |