A - Human Necessities – 62 – B
Patent
A - Human Necessities
62
B
A62B 1/02 (2006.01)
Patent
CA 2118669
A descent device includes a load carrier, a winder unit with a coil of cable for suspending the load carrier in mid-air so as to raise or lower the load carrier, and a retarding unit for impeding downward movement of the load carrier so that the load carrier can move downward at a lower speed to ensure safety of the occupants.
Barrigar Intellectual Property Law
Yen Kuei-Lin
LandOfFree
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