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2023
|
P/S
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Rods, namely, threaded metal rods, flux coated metal rods, solder rods of metal, screwed rods of ... |
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2019
|
P/S
|
Goods of common metal not included in other classes, namely, rods, namely, threaded metal rods, f... |
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2018
|
Invention
|
Backhead assembly for dth hammer. A backhead assembly system for a Down The Hole (DTH) hammer ope... |
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2013
|
Invention
|
Pressurized fluid flow system having multiple work chambers for a down the hole drill hammer and ... |
|
|
Invention
|
Pressurised fluid flow system including multiple working chambers for a down-the-hole hammer dril... |
|
|
Invention
|
Pressurized fluid flow system for a reverse circulation down-the-hole hammer and hammer thereof. ... |
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2012
|
Invention
|
Pressurized fluid flow system having multiple work chambers for a down-the-hole drill hammer and ... |
|
|
Invention
|
Pressurised fluid flow system for a normal-circulation down-the-hole hammer and hammer comprising... |
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2011
|
Invention
|
Pressurized fluid flow system for a normal circulation hammer and hammer thereof. A pressurized f... |
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2008
|
Invention
|
Pressurized fluid flow system for a reverse circulation hammer. A pressurized fluid flow system f... |
