Title:
Notebook
United States Patent 2421487
Inventors:
Dyck, Herbert F.
Publication Date:
06/03/1947
Export Citation:
Click for automatic bibliography generation
Assignee:
Dyck, Herbert F.
Primary Class:
281/50
Other Classes:
402/68
International Classes:
B42D5/00; B42D5/00
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US Patent References:
2248582Mounting means for sheets and the like
2153575Book with exchangeable leaves and binding element therefor
2017342Loose leaf binder
0884134N/A
Foreign References:
FR559769A
GB191227619A