- All sections
- B - Performing operationstransporting
- B42F - Sheets temporarily attached togetherfiling appliancesfile cardsindexing
- B42F 13/30 - Filing appliances with means for engaging perforations or slots having a set of rods within a set of tubes for a substantial distance when closed
Patent holdings for IPC class B42F 13/30
Total number of patents in this class: 1
10-year publication summary
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0
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0
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0
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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| World Wide Stationery Manufacturing Company, Limited | 2 |
1 |
| Other owners | 0 |