Shutter (354/226) Patents (Class 396/FOR866)
Foreign Patent Art Collections
- Having cocking means (354/251) (Class 396/FOR891)
- Having brake means (354/252) (Class 396/FOR892)
- Including aperture cover or lid (354/253) (Class 396/FOR893)
- Shutter blade moves continuously from closed to open to closed position (354/254) (Class 396/FOR894)
- Having retard means (354/256) (Class 396/FOR896)
- Plural oscillating blades (354/261) (Class 396/FOR901)
There are no patents to show for this class.