Loose-Leaf Binder.
Description:
Patent for a loose-leaf binder for records that does not require removing previously inserted pages to add new ones and secures them in place with a screw lock on the paper holding rings. When the book is full, the whole binder may be locked in place as a form of permanent binding and may only be opened with a key.
Date:
March 19, 1907
Creator:
Parry, Rees F.
Item Type:
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