Highway barrier

Details Highway barrier Highway barrier

1992-01-27

1994-01-18

Word, A. Hugo

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Visual

Patent

active

D03433692

REFERENCES:
patent: D235989 (1975-07-01), Richardson
patent: D276142 (1984-10-01), Dobrin
patent: D278416 (1985-04-01), Moran
patent: 3678815 (1972-07-01), Younker
patent: 3917232 (1975-11-01), Lindner
patent: 3980279 (1976-09-01), Bolinger
patent: 4312600 (1982-01-01), Schaag et al.
patent: 4773629 (1988-09-01), Yodock
patent: 4954009 (1990-09-01), Kellison

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