Structural unit
United States Patent 3319543
US Patent References:
Interlocking structural unit
- - 3172508

Locking bar for auxiliary landing mat
- - 3175476


Inventors:
Braeuninger, Karl F.
Glaza, Gordon K.
Publication Date:
05/16/1967
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Assignee:
DOW CHEMICAL CO
Primary Class:
404/35
Other Classes:
52/588.100
International Classes:
E01C9/08; E01C9/00