Multiple ring binder

Details Multiple ring binder Multiple ring binder

1992-04-16

1995-02-07

Burke, Wallace R.

Office supplies; artists and teachers materials

Book, album or cover

Ring bound or looseleaf type

Patent

active

D03552144

REFERENCES:
patent: 642244 (1900-01-01), Morehouse
patent: 851546 (1907-04-01), Mudd
patent: 3618241 (1969-02-01), Doty et al.
patent: 4722628 (1988-02-01), Rager
patent: 4943177 (1990-07-01), Jordan et al.

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