Title:
Notebook
United States Patent 2421487
US Patent References:
/0884134.html
- - 0884134
Book with exchangeable leaves and binding element therefor
- - 2153575
Loose leaf binder
- - 2017342
Mounting means for sheets and the like
- - 2248582
/0884134.html
- - 0884134
Book with exchangeable leaves and binding element therefor
- - 2153575
Loose leaf binder
- - 2017342
Mounting means for sheets and the like
- - 2248582
Inventors:
Dyck, Herbert F.
Publication Date:
06/03/1947
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Export Citation:
Assignee:
Dyck, Herbert F.
Primary Class:
Other Classes:
402/68
International Classes:
B42D5/00
Foreign References:
| FR559769A | ||||
| GB191227619A |