LandOfFree - Canadian Patents - Listing for E

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Oil sand spiral surface mining apparatus

E - Fixed Constructions – 21 – C

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Oil shale mining machine

E - Fixed Constructions – 21 – C

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Open cast mining apparatus

E - Fixed Constructions – 21 – C

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Open pit mine

E - Fixed Constructions – 21 – C

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Open pit mining

E - Fixed Constructions – 21 – C

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Open pit mining for tar sands

E - Fixed Constructions – 21 – C

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Open pit mining for tar sands

E - Fixed Constructions – 21 – C

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Open pit mining for tar sands

E - Fixed Constructions – 21 – C

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Open-cut-mining milling unit

E - Fixed Constructions – 21 – C

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Optical tool placement device

E - Fixed Constructions – 21 – C

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Ore dredging process

E - Fixed Constructions – 21 – C

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Ore extraction using combined blast and thermal fragmentation

E - Fixed Constructions – 21 – C

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Ore pass rush eliminator

E - Fixed Constructions – 21 – C

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Oscillating disc cutter with speed controlling bearings

E - Fixed Constructions – 21 – C

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

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