USD253708SExpiredUtility
Photographic slide projector
Assignee: ROLLEI WERKE FRANKE HEIDECKEPriority: May 10, 1976Filed: Oct 14, 1977Granted: Dec 18, 1979
Est. expiryMay 10, 1996(expired)· nominal 20-yr term from priority
Inventors:Dieter Mankau
53
PatentIndex Score
5
Cited by
0
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a photographic slide projector, substantially as shown and described.
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