https://patents.google.com/patent/US1879584
This invention relates to an anti-skid device of-the type which is adapted to be placed around an automobile tire, in one or more places, in order to enable the operator to get a the car out of a bad position.
Brilliant...I think that's exactly what it is :)
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Excellent! That's what this is: 1931 tire traction anti-skid device!
Thank you!
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