Jeans are a type of pants, typically made from denim or dungaree cloth. Often the term
“jeans” refers to a particular style of pants, called “blue jeans,” which were invented by
Jacob W. Davis in partnership with Levi Strauss & Co. in 1871 and patented by Jacob
W. Davis and Levi Strauss on May 20, 1873.
Prior to the Levi Strauss patented trousers, the term “blue jeans” had been long in use.
for various garments (including trousers, overalls, and coats), constructed from blue.
colored denim.
A fire sprinkler or sprinkler head is the component of a fire sprinkler system that.
discharges water when the effects of a fire have been detected, such as when a
predetermined temperature has been exceeded. Fire sprinklers are extensively used.
worldwide, with over 40 million sprinkler heads fitted each year. In buildings protected
by properly designed and maintained fire sprinklers, over 99% of fires were controlled.
by fire sprinklers alone.
QWERTY is a keyboard layout for Latin-script alphabets. The name comes from the
order of the first six keys on the top left letter row of the keyboard (Q W E R T Y).
The QWERTY design is based on a layout created for the Sholes and Glidden
typewriter and sold to Remington in 1873. It became popular with the success of the
Remington No. 2 of 1878, and remains in widespread use.
A dental drill or dentist’s drill is a small, high-speed drill used during dental procedures,
usually, to remove decay and shape tooth structure prior to the insertion of a filling or
crown. A dental drill may also be used in the cleaning and shaping of root canals, or to
remove old or temporary fillings or crowns prior to the insertion of new or permanent
restorations.
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