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Diaphragms of Photographic Objectives. US-Patent Nr. 3, 031, 581 für Optische Werke C.A. Steinheil …

Signature mark FA 005/3406
Subject Patentschrift
Title Diaphragms of Photographic Objectives. US-Patent Nr. 3, 031, 581 für Optische Werke C.A. Steinheil Söhne GmbH
Contains u.a. Zeichnungen zur Patentschrift
Duration 24.04.1962
Scope 4 Bl. gedr., ms.u. hs.
Subject area Fotografie. Fotoaufnahmetechnik. Objektive <570.02.14>
Formal information Languages: Englisch
Rights notice CC BY-SA 4.0
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