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Beurer BM26 sphygmomanometer. Beurer GmbH is a German family-owned Mittelstand manufacturer of electrical devices for health and well-being. Originally a manufacturer of electric blankets, the company began diversifying its product line in the 1980s [1] and now sell some 2,200 products including weighing scales, blood pressure monitors, and mobile ECG devices.
These were powered by the R11F2-300 turbojet and, starting with the seventh production batch, fitted with the RP-21 radar (the first six batches used the older TsD-30T radar (aka RP-9-21). Further, the weapons control system was modified from that of the F-13 to allow use of the RS-2US (aka K-5MS) beam-riding AAM in addition to the IR-seeking K-13.
The user guide engraved into a model of the Antikythera Mechanism. User guides have been found with ancient devices. One example is the Antikythera Mechanism, [1] a 2,000 year old Greek analogue computer that was found off the coast of the Greek island Antikythera in the year 1900. On the cover of this device are passages of text which describe ...
The B-21 is slated to, by 2040, replace the U.S. Air Force's 45 B-1 strategic bombers, which date from the 1980s, and 19 B-2 strategic bombers, which date from the 1990s. The B-21 may also eventually replace the Air Force’s 72 B-52 bombers, which originally date from the 1950s and are slated to remain in service for many decades.
MiG 21 Type 77 of the Indian Air Force landing.. Indian Air Force: 54 in service as of 2023.India received its first MiG-21s in 1963, numbering 8 MiG-21F-13s. Two more F-13s and two MiG-21PF were received in 1964, called the Type 74 [14] [15] and the Type 76 [15] respectively in the IAF.
The DM1 belt is based on the last version of the Gurt 34/41-family used in World War II in MG 34 and MG 42 machine guns. [17] After firing, the separated M13 link or emptied DM1 belt section is cleared out on the right side of the receiver through an ejection port normally covered by a spring-loaded dust cover.
The Mauser MG 213 was a 20 mm aircraft-mounted revolver cannon developed for the Luftwaffe during World War II. A further development using a 30 mm round was developed as the MG 213C, alternately known as the MK 213. Neither design was put into service before the war ended. The designs were studied by the Allies after the end of war.
IEC 61107 or currently IEC 62056-21, was an international standard for a computer protocol to read utility meters. It is designed to operate over any media, including the Internet . A meter sends ASCII (in modes A..D) or HDLC (mode E) data to a nearby hand-held unit (HHU) using a serial port .