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2. Trico - Wikipedia

   en.wikipedia.org/wiki/Trico

   1954: Four-Bar Blades. Early heavy duty wiper blades. 1956: Panoramic Rainbow or “P-R” Blades. The first windshield wiper blades to have an arc. A pair of spring-tensioned levers pre-flexed the blades to maintain constant pressure on the windshield. It was TRICO's most popular blade up to and through the late 1960s. 1957: TRICO Australia.

3. Windscreen wiper - Wikipedia

   en.wikipedia.org/wiki/Windscreen_wiper

   A windscreen wiper (Commonwealth English) or windshield wiper (American English) is a device used to remove rain, snow, ice, washer fluid, water, or other debris from a vehicle's front window. Almost all motor vehicles , including cars , trucks , buses , train locomotives , and watercraft with a cabin —and some aircraft —are equipped with ...

4. Mary Anderson (inventor) - Wikipedia

   en.wikipedia.org/wiki/Mary_Anderson_(inventor)

   In 1917, Charlotte Bridgewood patented the “electric storm windshield cleaner,” the first automatic wiper system that used rollers instead of blades. [11] [12] Like Anderson, Bridgewood never made any money from her invention. Sara-Scott Wingo, rector of Emmanuel Episcopal Church in Richmond, Va., and Anderson’s great-great niece suspect ...

5. List of blade materials - Wikipedia

   en.wikipedia.org/wiki/List_of_blade_materials

   The blade is made of non-rustproof carbon steel, blue-plastered by hand and finely forged from the base to the tip of the knife. The 90 mm (3.5 in) long blade shows patina (dark spots) caused by decades of use. It can easily be sharpened to a shaving sharp edge. Carbon steel is a popular choice for rough-use knives and cheaper options.

6. Wilkinson Sword - Wikipedia

   en.wikipedia.org/wiki/Wilkinson_Sword

   Wilkinson Sword Hydro 5: A 5-blade razor system with "skin guards advanced hydrating gel and a flip trimmer". Wilkinson Sword Hydro 3: A 3-blade razor system similar to the 5-blade system but all for a flip trimmer. Wilkinson Sword Hydro Silk: A 5-blade women's razor system. Introduced in mid-2012 as a Schick model; added to the Wilkinson Sword ...

7. Scalpel - Wikipedia

   en.wikipedia.org/wiki/Scalpel

   Scalpel blades are usually made of hardened and tempered steel, stainless steel, or high carbon steel; in addition, titanium, ceramic, diamond and even obsidian knives are not uncommon. For example, when performing surgery under MRI guidance, steel blades are unusable (the blades would be drawn to the magnets and would also cause image artifacts).