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Class Information
Number: 299/36
Name: Mining or in situ disintegration of hard material >

Sub-classes under this class:

Class Number Class Name Patents
299/1.05 Automatic control; signaling or indicating 61
299/10 Processes 85
299/19 Mine layouts 133
299/2 Tunnel recovery of fluid material 280
299/20 Expansible breaking-down devices 13
299/24 Ice-working devices 28
299/29 Hard material disintegrating machines 13
299/3 In situ conversion of solid to fluid 30
299/7 With separation of materials 59
299/79.1 Cutter tooth or tooth head 38
299/95 Miscellaneous 38

Patents under this class:

Patent Number Title Of Patent Date Issued

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