Land vehicles – Wheeled and runner – Retracting wheel or runner
Patent
1977-11-28
1979-08-07
Song, Robert R.
Land vehicles
Wheeled and runner
Retracting wheel or runner
280 11, B62B 1318
Patent
active
041635647
ABSTRACT:
A shopping cart having wheels is also provided with an attachment having skis allowing the same to be pulled over snow or other soft surfaces. The attachment comprises a pair of skis movable between a sliding position and a stowed position whereby the shopping cart may travel over snow or sand.
REFERENCES:
patent: 800720 (1905-10-01), Closson
patent: 2480256 (1949-08-01), Nurenberg
patent: 3851891 (1974-12-01), Liu
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