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Class Information
Number: 37/DIG.20
Name: Excavating >
Description:










Sub-classes under this class:

Class Number Class Name Patents
37/104 Railway graders 136
37/142.5 Ditch filler 116
37/182 Orange-peel buckets 2
37/189 Rotary digger 142
37/195 Processes 201
37/196 Snow or ice removing or grooming by portable device 34
37/3 Peat excavators 10
37/300 Grave digger 9
37/301 Land clearer 43
37/304 Self-loading vehicle 19
37/307 Beneath a body of water (e.g., dredger) 47
37/347 Ditcher 65
37/381 Road grader-type 22
37/394 Cable-operated (e.g., dragline) 22
37/403 Combined or convertible 307
37/411 Scoop or excavating and transporting container 44
37/446 Digging edge 78
37/461 Clamshell bucket 28
37/462 Endless digger 37
37/466 Miscellaneous 98
37/901 Bucket cleaners 38
37/902 Hydraulic motors 16
37/903 Scoop or scraper attachments 187
37/904 Vibration means for excavating tool 84
37/905 Nondredge excavating by fluid contact or explosion 19
37/906 Visual aids and indicators for excavating tool 20
37/907 Automatic leveling excavators 56
37/908 Canal cleaners 6


Patents under this class:

Patent Number Title Of Patent Date Issued











 
 
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