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Joseph Bradbury and Sons Ltd
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Joseph Bradbury and Sons Ltd
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Application filed by Joseph Bradbury and Sons LtdfiledCriticalJoseph Bradbury and Sons Ltd
Application grantedgrantedCritical
Publication of FR934802ApublicationCriticalpatent/FR934802A/en
B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
B66F1/00—Devices, e.g. jacks, for lifting loads in predetermined steps
B66F1/02—Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts
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FR934802D1945-04-061946-08-29
Improvements to lifting devices
ExpiredFR934802A
(en)