Road marker

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Visual

Patent

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Details

D10113, D20 31, 1005

Patent

active

D03887243

REFERENCES:
patent: D74859 (1928-04-01), Alexander
patent: D99034 (1936-03-01), Le Fevre
patent: D199471 (1964-10-01), Zeibow
patent: D220013 (1971-02-01), Kaltman
patent: D251693 (1979-04-01), Van Koert
patent: D276797 (1984-12-01), Narens et al.
patent: D305213 (1989-12-01), Hughes
patent: D343585 (1994-01-01), Strong
patent: D344685 (1994-03-01), Caporale

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