Highway barrier

Details Highway barrier Highway barrier

1990-10-18

1993-11-09

Word, A. Hugo

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Visual

D25 44

Patent

active

D03410986

REFERENCES:
patent: D193597 (1962-09-01), Van De Velde et al.
patent: D235989 (1975-07-01), Richardson
patent: 3732653 (1973-05-01), Pickett
patent: 3917232 (1975-11-01), Lindner
patent: 4594021 (1986-06-01), Schafer et al.
patent: 4685656 (1987-08-01), Lee et al.
patent: 5011325 (1991-04-01), Antonioli
patent: 5022781 (1991-06-01), Smith

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