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This thesis is about the origin and development of electromagnetic weapons used in policing and military tasks as a non-lethal tool. The electromagnetic weapon was taken into consideration as a military or police means of antipersonnel engagement in the late 1970s. In the 1980s the USA conducted some defense programs towards development of lethal high energy laser weapons, to shoot down ballistic...
Przedstawiono zastosowanie spawania do produkcji różnego rodzaju grzejników, kotłów grzejnych oraz instalacji hydraulicznych i centralnego ogrzewania w dwudziestoleciu międzywojennym w Polsce i w krajach europejskich.
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