Auxiliary ring supports on covers

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Patents Grantslast 30 patents

Information Patent Grant
Loose-leaf binder
- Patent number 5,967,690
- Issue date Oct 19, 1999
- Specialty Loose Leaf, Inc.
- Paul R. Tibbetts
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Binder backing for notebooks
- Patent number 4,750,884
- Issue date Jun 14, 1988
- American Trading & Production Corporation
- Thomas W. Bourgeois
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
3606557
- Patent number 3,606,557
- Issue date Sep 20, 1971
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
1390016
- Patent number 1,390,016
- Issue date Sep 6, 1921
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER