Sporting field layout system

Details Sporting field layout system Sporting field layout system

1992-08-28

1994-01-25

Grieb, William H.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Projectile backstop

33756, 33759, A63B 7100, G01B 310

Patent

active

052809218

ABSTRACT:
A cable used to mark lines on athletic fields having sections of tubing that locate the particular yard line to run chalk lines from one side of the field to the other.

REFERENCES:
patent: 464205 (1891-12-01), Swope
patent: 3039197 (1962-06-01), Abbott
patent: 4160324 (1979-07-01), Dunn
patent: 5036613 (1991-08-01), Smith
patent: 5052693 (1991-10-01), Hicks

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