Sunday, November 15, 2026

Friday, November 15, 1901. Audio.

Miller Reese Hutchison applied for two patents for the components of what would become the first battery-powered hearing aid, the "Acousticon".

Hutchinson also invented the extremely loud klaxon.

The US Army unveiled a new 12-inch (300 mm) cannon in a competition against the 18-inch (460 mm) "dynamite shell" cannon invented by Louis Gathmann.  These were coast artillery guns.

Last edition:

Thursday, November 14, 1901. Expanding the Navajo Reservation.

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