Grade marker

Signals and indicators – Indicators – By location

Patent

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Details

G09F 1700

Patent

active

051742373

ABSTRACT:
A grade marker having a flag or feather made of a bundle of stiff, resilient strands, a wood peg, and at least one staple within which the feather is located. The feather is located within at least one staple. The staple is driven into the side of the peg or stake.

REFERENCES:
patent: 2506197 (1950-05-01), Burger
patent: 2810977 (1957-10-01), Barry
patent: 3162880 (1964-12-01), Francis
patent: 3267901 (1966-08-01), Carroll
patent: 3903835 (1975-09-01), Carroll
patent: 4813494 (1989-03-01), Beard et al.
patent: 5003735 (1991-04-01), Bates
patent: 5044303 (1991-09-01), Culver, Jr.

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