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2. Trencher (machine) - Wikipedia

   en.wikipedia.org/wiki/Trencher_(machine)

   A wheel trencher in South Africa Stealth Communications' Microtrenching in Chinatown (Manhattan), for installing fiber optic cables in microducts.. A trencher is a piece of construction equipment used to dig trenches, especially for laying pipes or electrical cables, for installing drainage, or in preparation for trench warfare.

3. Vermeer Corporation - Wikipedia

   en.wikipedia.org/wiki/Vermeer_Corporation

   Portable Pow-R Drive, a self-propelled irrigation system, hay conditioner and cutter are introduced in the 1950s. Vermeer invents the first machine to dig, transport and replace large trees in the 1960s. The first larger round hay baler was invented by Gary Vermeer in 1971. Allis Chalmers first introduced the small round rotobaler in 1947.

4. Ditch Witch - Wikipedia

   en.wikipedia.org/wiki/Ditch_Witch

   A 6-inch wide trench with a digging depth of 30 inches was the goal. [4] The first production trencher rolled off the assembly line in 1949. Called the "endless conveyor ditch digging machine," It was the first mechanized, compact service-line trencher developed for laying underground water lines between the street main and the house.

5. RK-3 Corsar - Wikipedia

   en.wikipedia.org/wiki/RK-3_Corsar

   Corsar is a light portable anti tank missile system. It is intended to destroy stationary and moving armored targets. It can also be used against emplacements, light-armored objects and helicopters. Firing can be carried out from the mount as well as from a trench parapet. A method of guidance is laser beam riding. [8]

6. Hydraulic splitter - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_splitter

   A hydraulic splitter, also known as rock splitter or darda splitter, is a type of portable hydraulic tool. It is used in demolition jobs which involve breaking large blocks of concrete or rocks . Its use in geology was first popularized by volcanologist David Richardson.

7. Entrenching tool - Wikipedia

   en.wikipedia.org/wiki/Entrenching_tool

   In the close confines of a trench, rifles and fixed bayonets were often too long for effective use, and entrenching tools were often used as auxiliary arms for close quarters combat. [13] In Nancy Mitford 's 1945 novel, The Pursuit of Love , there hangs over the chimney-piece an entrenching tool "with which, in 1915, Uncle Matthew had whacked ...