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The new standard-issue rifle. 50,629 brand new units were initially ordered, 44,186 are for the Philippine Army and 6,443 are for the Philippine Marine Corps. [105] Eventually, due to savings, another 12,657 R4A3 rifles were procured bringing the total to 56,843 rifles. [106]
Speedglas welding helmet. The modern welding helmet used today was first introduced in 1937 by Willson Products. [5] In 1981, Swedish manufacturer Hornell International (now owned by 3M [6]) introduced an LCD electronic shutter that darkens automatically when sensors detect the bright welding arc, [7] the Speedglas Auto-Darkening Filter. With ...
There are two main types of respirators. One type of respirator functions by filtering out chemicals and gases, or airborne particles, from the air breathed by the user. [5] The filtration may be either passive or active (powered). Gas masks and particulate respirators (like N95 masks) [6] are examples of this type of respirator. A second type ...
It is an above-the-neck, chemical-biological (CB) respirator that protects against battlefield concentrations of CB agents, toxins, toxic industrial materials, and radioactive particulate matter. The M50/51 masks replace the M40 field protective mask and M42, the MCU-2/P series masks, and the M45 of the Land Warrior Program. [2]
A Mark 82 bomb fitted with a paveway guidance kit. [44] [45] GBU-49 Enhanced Paveway II: United States Dual-mode GPS and laser-guided bomb A GBU-12 Paveway II with an added GPS guidance. [44] [45] Folding-Fin Aerial Rocket: United States Air-to-ground rocket Hydra 70: United States Air-to-ground rocket Zuni: United States Air-to-ground rocket ...
A powered air-purifying respirator (PAPR) is a type of respirator used to safeguard workers against contaminated air. PAPRs consist of a headgear-and-fan assembly that takes ambient air contaminated with one or more type of pollutant or pathogen , actively removes (filters) a sufficient proportion of these hazards, and then delivers the clean ...
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