Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
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Lewis Lyman Petett
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Individual
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Individual
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Publication of GB189721271ApublicationCriticalpatent/GB189721271A/en
Mattresses And Other Support Structures For Chairs And Beds
(AREA)
Check Valves
(AREA)
Fluid-Damping Devices
(AREA)
Abstract
21,271. Petett, L. L. Sept. 16. Sledges, pneumatic cushions for. The cushion is formed of two distinct parts 10, 11, of which the former is preferably higher than the latter, and each has an inflating-valve 12.
GB189721271D1897-09-161897-09-16Improvements in Pneumatic Cushions for Sledges, Carriages, and other Vehicles.
ExpiredGB189721271A
(en)