CH192864,_page_6.png


Summary

Description
English: Pigeon camera, patent drawing of invention by Christian Adrian Michel.
Date
Source Swiss patent CH192864
Author Unknown who drew it, Christian Adrian Michel (1912-1980) was the patent applicant

Licensing

Public domain
This image is from or of:
  • a law, ordinance, international treaty or other official act
  • a decision, protocol or report by public authorities
  • a means of payment
  • a patent or patent application
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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