USD316872SExpiredUtility

Ring binder

Assignee: Innotech AGPriority: Jul 20, 1988Filed: Jan 18, 1989Granted: May 14, 1991
Est. expiryJul 20, 2008(expired)· nominal 20-yr term from priority
Inventors:Heinz Witschi
57
PatentIndex Score
9
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a ring binder, as shown and described.

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