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Inventor:
A/L Lynkaran; Kannappan@Suresh
Address:
Singapore, SG
No. of patents:
1
Patents:












Patent Number Title Of Patent Date Issued
7980337 Stair climbing device July 19, 2011
The present invention provides a device for safely and conveniently conveying an object on a slope. The safety feature includes a fail-safe one-way brake comprising a ratchet wheel, a pawl and a biasing means. In one embodiment, the device is foldable; in another embodiment, the device










 
 
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