Assertion: arc welding | /r/HasProperty | developed in late 19th century
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Source sentences:
text: Unlike other forms of welding such as arc welding (which was developed in the late 19th century), explosion welding was developed relatively recently, in the decades after World War II.
text: First developed in the late part of the 19th century, arc welding became commercially important in shipbuilding during the Second World War.