US Patent Issued to Australian Mathematics Central on June 9 for "Linear abacus" (Australian Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. D1,129,554, issued on June 9, was assigned to Australian Mathematics Central Pty Ltd (Port Melbourne, Australia).

"Linear abacus" was invented by Danny Grouios (Port Melbourne, Australia), Genovieve Grouios (Port Melbourne, Australia) and Andrew Waywood (Launching Place, Australia).

The patent was filed on Nov. 11, 2022, under Application No. D/867,890.

*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=D1129554&OS=D1129554&RS=D1129554

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