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2. Door phone - Wikipedia

   en.wikipedia.org/wiki/Door_phone

   Modern outdoor phone plate with a push buttons matrix. A door phone in its most basic version is a two-way intercom allowing communication from the street to the inside of a building. More complex door phones are connected to electric strikes, and can unlock and open the door to allow access to the interior of the building. [1]

3. Doorbell - Wikipedia

   en.wikipedia.org/wiki/Doorbell

   Doorbell mechanism from 1884 in Andrássy Avenue, Budapest Antique mechanically operated shop doorbell on a torsion spring. William Murdoch, a Scottish inventor, installed a number of his own innovations in his house, built in Birmingham in 1817; one of these was a loud doorbell, that worked using a piped system of compressed air. [1]

4. Push-button telephone - Wikipedia

   en.wikipedia.org/wiki/Push-button_telephone

   A push-button telephone is a telephone that has buttons or keys for dialing a telephone number, in contrast to a rotary dial used in earlier telephones.. Western Electric experimented as early as 1941 with methods of using mechanically activated reeds to produce two tones for each of the ten digits and by the late 1940s such technology was field-tested in a No. 5 Crossbar switching system in ...

5. These Foods Can Help Ease Chronic Pain, New Research Suggests

   www.aol.com/science-says-eating-could-help...

   21% of Americans have chronic pain. A new study found that diets rich in vegetables, fruits, grains, lean proteins, and dairy was linked to less chronic pain.

6. What Happens to Your Body When You Eat Olive Oil Every Day

   www.aol.com/happens-body-eat-olive-oil-234333463...

   Where to shop today's best deals: Kate Spade, Amazon, Walmart and more

7. Electric bell - Wikipedia

   en.wikipedia.org/wiki/Electric_bell

   Older electric doorbell. An electric bell is a mechanical or electronic bell that functions by means of an electromagnet.When an electric current is applied, it produces a repetitive buzzing, clanging or ringing sound.

8. Our Candy Cane Cake Is Red, White & Everything Right - AOL

   www.aol.com/candy-cane-cake-red-white-170000242.html

   Yields: 14-16 servings. Prep Time: 40 mins. Total Time: 3 hours. Ingredients. Cake. Cooking spray. 5 c. (600 g.) all-purpose flour. 3 tsp. baking powder. 1 1/2 tsp.

9. Telephone keypad - Wikipedia

   en.wikipedia.org/wiki/Telephone_keypad

   A telephone keypad is a keypad installed on a push-button telephone or similar telecommunication device for dialing a telephone number. It was standardized when the dual-tone multi-frequency signaling (DTMF) system was developed in the Bell System in the United States in the 1960s – this replaced rotary dialing , that had been developed for ...