Land vehicles – Wheeled and runner – Retracting wheel or runner
Patent
1978-09-01
1980-03-04
Song, Robert R.
Land vehicles
Wheeled and runner
Retracting wheel or runner
280 11, B62B 1318
Patent
active
041913914
ABSTRACT:
The present invention provides a shopping cart of the two-wheel variety wherein an auxiliary sled attachment is provided, said attachment being adapted to be moved from one to the other of two selectable positions and to be retained in either of such positions, said attachment consisting of a sled having a snow engaging surface which in one position will underlie the wheels, and in the other position will be held out of engagement with the sidewalk or street and in substantially parallel coincidence with a side of the cart.
REFERENCES:
patent: 2425107 (1947-08-01), Martin
patent: 2577885 (1951-12-01), Gay
patent: 3851891 (1974-12-01), Lin
patent: 4040638 (1977-08-01), Flagg
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