File:Patent CH 147 025.jpg

File:Patent CH 147 025.jpg

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DescriptionPatent CH 147 025.jpg	English: Swiss Patent CH 147 025
Date	1 August 1931
Source	Swiss patent 147025
Author	Ernst Constam 1888-1965

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of Switzerland or the Swiss cantons. It is therefore not protected by copyright by virtue of Art. 5 of the Swiss Copyright Act.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	22:28, 10 July 2015		600 × 700 (70 KB)	Rollis Igel (talk \| contribs)	User created page with UploadWizard

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