Class-related Foreign Documents Patents (Class 220/FOR000)
Foreign Patent Art Collections
- With closure guiding means (220/353) (Class 220/FOR106)
- Closure received by upwardly opening trough at passage mouth (220/354) (Class 220/FOR107)
- Passage mouth received by downwardly opening channel in closure (220/355) (Class 220/FOR108)
- Closure flange embraces passage mouth (220/356) (Class 220/FOR109)
- With gasket or packing (220/358) (Class 220/FOR111)
There are no patents to show for this class.