PATENT ABRIDGMENT (11) Document No. AU-B-8379/93 by Ika Zinka Eferl

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09-Jul-2014

PATENT ABRIDGMENT (11) Document No. AU-B-8379/93

Commonwealth of Australia Letters patent No. 668929
Patents Act 1990

LEVEL SWITCH
Inventors: Franc Eferl
https://sites.google.com/site/izumiteljeferlfranc/home

Nikon D3100
1/500s f/5.6 at 70.0mm iso1600 full exif

other sizes: small medium original auto

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All photographs are copyright Ika Zinka Eferl and may not be used without my permission

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