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Scheme
Definition
CPC-to-IPC
Compilation of Changes
Recent Changes List
CPC to IPC Concordance for Subclass
A
43B
Printable Version [PDF]
Version:
2026.08
CPC Group
IPC Group
CPC Group
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13/023
A
43
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13/02
open_in_new
A
43B
13/026
A
43
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13/02
open_in_new
A
43B
13/04
A
43
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13/04
open_in_new
A
43B
13/06
A
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13/06
open_in_new
A
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13/08
A
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13/08
open_in_new
A
43B
13/10
A
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13/10
open_in_new
A
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13/12
A
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13/12
open_in_new
A
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13/122
A
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13/12
open_in_new
A
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13/125
A
43
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13/12
open_in_new
A
43B
13/127
A
43
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13/12
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A
43B
13/14
A
43
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13/14
open_in_new
A
43B
13/141
A
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13/14
open_in_new
A
43B
13/143
A
43
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13/14
open_in_new
A
43B
13/145
A
43
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13/14
open_in_new
A
43B
13/146
A
43
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13/14
open_in_new
A
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13/148
A
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13/14
open_in_new
A
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13/16
A
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13/16
open_in_new
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13/18
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13/18
open_in_new
A
43B
13/181
A
43
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13/18
open_in_new
A
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A
43
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13/18
open_in_new
A
43B
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A
43
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13/18
open_in_new
A
43B
13/184
A
43
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13/18
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A
43B
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A
43
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13/18
open_in_new
A
43B
13/186
A
43
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13/18
open_in_new
A
43B
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A
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13/18
open_in_new
A
43B
13/188
A
43
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13/18
open_in_new
A
43B
13/189
A
43
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13/18
open_in_new
A
43B
13/20
A
43
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13/20
open_in_new
A
43B
13/203
A
43
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13/20
open_in_new
A
43B
13/206
A
43
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13/20
open_in_new
A
43B
13/22
A
43
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13/22
open_in_new
A
43B
13/223
A
43
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13/22
open_in_new
A
43B
13/226
A
43
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13/22
open_in_new
A
43B
13/24
A
43
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13/24
open_in_new
A
43B
13/26
A
43
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13/26
open_in_new
A
43B
13/28
A
43
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13/28
open_in_new
A
43B
13/30
A
43
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13/30
open_in_new
A
43B
13/32
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13/32
open_in_new
A
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13/34
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13/34
open_in_new
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13/36
open_in_new
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open_in_new
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13/38
open_in_new
A
43B
13/383
A
43
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13/38
open_in_new
A
43B
13/386
A
43
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13/38
open_in_new
A
43B
13/39
A
43
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13/39
open_in_new
A
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13/40
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13/40
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13/41
open_in_new
A
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13/42
open_in_new
A
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15/00
A
43
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15/00
open_in_new
A
43B
17/00
A
43
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17/00
open_in_new
A
43B
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A
43
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17/00
open_in_new
A
43B
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A
43
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17/00
open_in_new
A
43B
17/02
A
43
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17/02
open_in_new
A
43B
17/023
A
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17/02
open_in_new
A
43B
17/026
A
43
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17/02
open_in_new
A
43B
17/03
A
43
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17/03
open_in_new
A
43B
17/035
A
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17/03
open_in_new
A
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17/04
A
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17/04
open_in_new
A
43B
17/06
A
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17/06
open_in_new
A
43B
17/08
A
43
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17/08
open_in_new
A
43B
17/10
A
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17/10
open_in_new
A
43B
17/102
A
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17/10
open_in_new
A
43B
17/105
A
43
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17/10
open_in_new
A
43B
17/107
A
43
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17/10
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A
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17/12
A
43
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17/12
open_in_new
A
43B
17/14
A
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17/14
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A
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17/16
A
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17/16
open_in_new
A
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A
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17/18
open_in_new
A
43B
19/00
A
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19/00
open_in_new
A
43B
19/005
A
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19/00
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A
43B
21/00
A
43
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21/00
open_in_new
A
43B
21/02
A
43
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21/02
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A
43B
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A
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21/02
open_in_new
A
43B
21/03
A
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21/03
open_in_new
A
43B
21/04
A
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21/04
open_in_new
A
43B
21/06
A
43
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21/06
open_in_new
A
43B
21/08
A
43
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21/08
open_in_new
A
43B
21/18
A
43
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21/18
open_in_new
A
43B
21/20
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43
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21/20
open_in_new
A
43B
21/22
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43
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21/22
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A
43B
21/24
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21/24
open_in_new
A
43B
21/26
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21/26
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21/265
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21/26
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21/285
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21/28
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21/30
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23/00
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23/00
open_in_new
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23/02
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23/02
open_in_new
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43B
23/0205
A
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23/02
open_in_new
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23/021
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23/02
open_in_new
A
43B
23/0215
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23/02
open_in_new
A
43B
23/022
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23/02
open_in_new
A
43B
23/0225
A
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23/02
open_in_new
A
43B
23/023
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23/02
open_in_new
A
43B
23/0235
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23/02
open_in_new
A
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23/024
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23/02
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43B
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23/02
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23/025
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23/02
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A
43B
23/0255
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23/02
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43B
23/026
A
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23/02
open_in_new
A
43B
23/0265
A
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23/02
open_in_new
A
43B
23/027
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23/02
open_in_new
A
43B
23/0275
A
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23/02
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23/028
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23/02
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23/0285
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23/02
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23/029
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23/02
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23/02
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23/04
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23/04
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23/042
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23/04
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23/045
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23/04
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23/047
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23/04
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23/06
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23/06
open_in_new
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43B
23/07
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23/07
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43B
23/08
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23/08
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23/081
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23/08
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A
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23/08
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43B
23/083
A
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23/08
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23/08
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A
43B
23/086
A
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23/08
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A
43B
23/087
A
43
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23/08
open_in_new
A
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23/088
A
43
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23/08
open_in_new
A
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23/10
A
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23/10
open_in_new
A
43B
23/105
A
43
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23/10
open_in_new
A
43B
23/14
A
43
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23/14
open_in_new
A
43B
23/16
A
43
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23/16
open_in_new
A
43B
23/17
A
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23/17
open_in_new
A
43B
23/20
A
43
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23/20
open_in_new
A
43B
23/22
A
43
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23/22
open_in_new
A
43B
23/222
A
43
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23/22
open_in_new
A
43B
23/225
A
43
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23/22
open_in_new
A
43B
23/227
A
43
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23/22
open_in_new
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23/24
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43
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23/24
open_in_new
A
43B
23/25
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43
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23/25
open_in_new
A
43B
23/26
A
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23/26
open_in_new
A
43B
23/28
A
43
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23/28
open_in_new
A
43B
23/30
A
43
B
23/30
open_in_new
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Last updated on:
Friday July 31, 2026
Published on:
Friday July 31, 2026
Owned by:
Office of International Patent Cooperation