E21C

Watch

Stats

Description

MINING OR QUARRYING

Subclasses

Not Available
Subclass Title
25/00 Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (dislodging machines with slitting means E21C 27/02, E21C 27/1, E21C 27/18)
25/02 Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (dislodging machines with slitting means E21C 27/02, E21C 27/1, E21C 27/18) Machines slitting solely by one or more percussive tools moved through the seam
25/04 Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (dislodging machines with slitting means E21C 27/02, E21C 27/1, E21C 27/18) Machines slitting solely by one or more percussive tools moved through the seam Cutting crowns or other tools (percussion drill bits E21B 10/36)
25/06 Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (dislodging machines with slitting means E21C 27/02, E21C 27/1, E21C 27/18) Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
25/08 Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (dislodging machines with slitting means E21C 27/02, E21C 27/1, E21C 27/18) Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate Mountings for the rods or drums

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Recent Patents

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Recent Publications

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Patents Issued To Date - By Filing Year

Average Time to Issuance

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