Traffic control barrier
United States Patent 3020023
US Patent References:
Road barricade or trestle
- - 2507880

Portable sectional fence
- - 2517386

Foldable play pen
- - 2895717


Inventors:
Macintyre, David R.
Kenneth, Schultze Frederick
Publication Date:
02/06/1962
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Assignee:
Macintyre, David R.
Kenneth, Schultze Frederick
Primary Class:
256/24
Other Classes:
256/64, 256/25
International Classes:
E01F9/012; E01F13/02; E04H17/18; E01F9/011; E01F13/00; E04H17/16