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ROADWAY ACCESS HOLE DRILL AND A METHOD OF MICROTRENCHING USING THE DRILL TO OPEN AN ACCESS HOLE IN THE ROADWAY
A method of cutting a microtrech in which the buried utility is exposed by opening an access hole in a roadway above the buried utility using a roadway access hole drill that rotates and vibrates the drill bit. A roadway access hole drill having a down-the-hole jack-hammer drill bit and a motor to rotate the down-the-hole jack-hammer drill.
ROADWAY ACCESS HOLE DRILL AND A METHOD OF MICROTRENCHING USING THE DRILL TO OPEN AN ACCESS HOLE IN THE ROADWAY
A method of cutting a microtrech in which the buried utility is exposed by opening an access hole in a roadway above the buried utility using a roadway access hole drill that rotates and vibrates the drill bit. A roadway access hole drill having a down-the-hole jack-hammer drill bit and a motor to rotate the down-the-hole jack-hammer drill.
ROADWAY ACCESS HOLE DRILL AND A METHOD OF MICROTRENCHING USING THE DRILL TO OPEN AN ACCESS HOLE IN THE ROADWAY
PINO JR ANGELO J (Autor:in) / URBAN DANIEL (Autor:in)
04.03.2021
Patent
Elektronische Ressource
Englisch
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