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File:Gramatzki-Transfokator.tif

Gramatzki-Transfokator.tif ‎(502 × 417 pixels, file size: 614 KB, MIME type: image/tiff)

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Description
Deutsch: Zeichnung eines Transfokators, 1928 erfunden von Hugh Ivan Gramatzki, Mitbegründer von Astro-Berlin
Date
Source Original Patentschrift eines Patents für Hugh Ivan Gramatzki, Mitbegründer von Astro-Berlin
Author Gramatzki/Trinitrx
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Public domain This image is in the public domain according to German copyright law because it is part of a statute, ordinance, official decree or judgment (official work) issued by a German authority or court (§ 5 Abs.1 UrhG).

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Date/TimeThumbnailDimensionsUserComment
current23:08, 16 August 2011Thumbnail for version as of 23:08, 16 August 2011502 × 417 (614 KB)Trinitrix (talk | contribs){{Information |Description ={{pdc|1=Zeichnung eines Transfokators, 1928 erfunden von Hugh Ivan Gramatzki, Mitbegründer von Astro-Berlin}} |Source =Original Patentschrift eines Patents für Hugh Ivan Gramatzki, Mitbegründer von Astro-Berlin |A

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