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2. White noise machine - Wikipedia

   en.wikipedia.org/wiki/White_noise_machine

   This fan drives air through small slots in the machine's casing, producing the desired sound. The first fan-based white noise machine was the Marpac Dohm, [8] which was invented in 1962 and is frequently credited as the original domestic use white noise machine.

3. 5 Great Sound Machines That Will Transform Your Sleep - AOL

   www.aol.com/5-great-sound-machines-sleeping...

   In fact, this sound machine offers only the essentials, including a volume knob, a timer, and just six built-in sounds (White Noise, Thunder, Ocean, Rain, Summer Night, and Brook).

4. Rohm - Wikipedia

   en.wikipedia.org/wiki/Rohm

   The name of the company was officially changed to Rohm in 1979 and then changed again to Rohm Semiconductor in January 2009. When Rohm was established, resistors were its main product. Later, the company began manufacturing semiconductors. ICs and discrete semiconductors now account for about 80% of Rohm's revenue.

5. Long-range acoustic device - Wikipedia

   en.wikipedia.org/wiki/Long-range_acoustic_device

   A long-range acoustic device (LRAD), acoustic hailing device (AHD) or sound cannon is a specialized loudspeaker that produces sound at high power for communicating at a distance. It has been used as a method of crowd control , which has caused permanent hearing damage , having an extremely high decibel capacity (up to 160 dB measured at one ...

6. RÖHM GmbH - Wikipedia

   en.wikipedia.org/wiki/RÖHM_GmbH

   The machines enabled the processing of parts of up to four meters in diameter and 25 tons in weight. Due to a net weight of 108 tons the machine required a foundation of 180 tons of iron and steel. The Dillingen site mainly produces lathe chucks, machine vices and special clamping equipment for turning and milling machinery as well as for ...

7. Music Center Incorporated - Wikipedia

   en.wikipedia.org/wiki/Music_Center_Incorporated

   During the late 1950s Grover 'Jeep' Harned, the founder of MCI, owned and operated a small record and stereo servicing outlet in Ft. Lauderdale, Florida.He also designed and built custom audio equipment such as mixing consoles, audio preamplifiers and general record electronics at the request of customers like Mack Emerman, the owner of the nearby Criteria Recording Studios.