Card sorting device
United States Patent 2678045
US Patent References:
Filing-drawer and card-holder
- - 1382429
Drawer partition
- - 1893186
Vertical card filing cabinet
- - 1918765
Drawer of a vertical type for indexing and classifying
- - 2169562
Sorting tray
- - 2229299
Filing-drawer and card-holder
- - 1382429
Drawer partition
- - 1893186
Vertical card filing cabinet
- - 1918765
Drawer of a vertical type for indexing and classifying
- - 2169562
Sorting tray
- - 2229299
Inventors:
Erhard, Frances C.
Publication Date:
05/11/1954
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Export Citation:
Assignee:
Erhard, Frances C.
Primary Class:
Other Classes:
D19/100, 211/184
International Classes:
B42F17/02; B42F17/00
Foreign References:
| GB150835A |