Locating elements of construction beneath the surface of earth s

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – With protection or indication of pipe or trench

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Details

116DIG14, 405154, F16L 5700, G01D 2100

Patent

active

046232826

ABSTRACT:
Locating underground utility lines or elements of construction with a frangible body or tape. The tape includes printing indicia identifying the type of underground facility with the printing indicia protected from the environment. The tape is color coded to the type of underground facility and has soil contrasting reflective stripes to aid in tape detection.

REFERENCES:
patent: 3115861 (1963-12-01), Allen
patent: 3282057 (1966-11-01), Prosser
patent: 3327484 (1967-06-01), Launder et al.
patent: 3339369 (1967-09-01), Ryan
patent: 3504503 (1970-04-01), Allen
patent: 3568626 (1971-03-01), Southworth
patent: 3633533 (1972-01-01), Allen
patent: 3908582 (1975-09-01), Evett

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