Deletion of Liquid level indicator

Comment: per Rankiri . Also, Citius Altius is correct that just being patented does not satisfy the |notability requirement of multiple reliable and independent sources with significant coverage. Lots of useless and non-notable junk gets patented, and Wikipedia is not a mirror of any country's patent database. Other inventions, such as incandescent lights, airplanes, or lasers have the required multipe reliable sources, so demanding the deletion of every other article about inventions is silly
Stance: delete
Cited policy: Wikipedia:Notability (WP:N)