Roadway marker

Details Roadway marker Roadway marker

1986-05-19

1989-05-23

Lucas, Susan J.

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Visual

Patent

active

D03012093

REFERENCES:
patent: D106675 (1937-10-01), Osbrink
patent: D237158 (1975-10-01), Schaefer
patent: D244764 (1977-06-01), Grubauer
patent: 4428320 (1984-01-01), Oplt et al.

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