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  2. Telechron - Wikipedia

    en.wikipedia.org/wiki/Telechron

    The electric clock market grew rapidly in the 1930s, and Telechron's patented power interruption indicator gave his clocks an advantage over competing synchronous clocks, but by the 1950s battery-operated clocks that weren't dependent on the power grid took market share, and in the 1960s the quartz clock replaced synchronous clocks.

  3. List of United States clock companies - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States...

    The following is a list of American companies that produced, or currently produce clocks. Where known, the location of the company and the dates of clock manufacture follow the name. Samuel Abbott; Montpelier, Vermont (1830–1861) Ansonia Clock Company; Ansonia, Connecticut and Brooklyn, New York (1851–1929)

  4. Kit-Cat Klock - Wikipedia

    en.wikipedia.org/wiki/Kit-Cat_Klock

    The words "Kit-Cat" were added to the clock's face in 1982. The original clocks were AC-powered, but due to scarcity of American-made AC motors, the clock was redesigned for battery power in the late 1980s. [3] The manufacturer estimates that an average of one clock has been sold every three minutes for the last 50 years. [4]

  5. Real-time clock - Wikipedia

    en.wikipedia.org/wiki/Real-time_clock

    Lithium battery inside the real-time clock IC RTCs often have an alternate source of power, so they can continue to keep time while the primary source of power is off or unavailable. This alternate source of power is normally a lithium battery in older systems, but some newer systems use a supercapacitor , [ 4 ] [ 5 ] because they are ...

  6. Radium dial - Wikipedia

    en.wikipedia.org/wiki/Radium_dial

    November 1917 ad for an Ingersoll "Radiolite" watch, one of the first watches mass marketed in the USA featuring a radium-illuminated dial. Radium was discovered by Marie and Pierre Curie in 1898 [1] and was soon combined with paint to make luminescent paint, which was applied to clocks, airplane instruments, and the like, to be able to read them in the dark.

  7. Novation Digital Music Systems - Wikipedia

    en.wikipedia.org/wiki/Novation_Digital_Music_Systems

    Novation's first commercial product, released in 1992, was the Novation MM10, a portable battery-operated keyboard controller with full-sized keys, designed to operate with the Yamaha QY10 music workstation. It was based on a device called the MidiCon, which was never released and was the first hardware controller the company made.

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