B - Operations – Transporting – 66 – F
Patent
B - Operations, Transporting
66
F
214/2, 214/4
B66F 9/18 (2006.01)
Patent
CA 1045587
VACUUM LIFT APPARATUS WITH A CONTROL VALVE ASSEMBLY Abstract A lift truck attachment for lifting heavy loads through use of negative air pressure characterized by a novel valve: structure responsive to load engagement for opening the negative air pressure line.
231271
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