Motor vehicles – Special driving device – Portable track
Patent
1977-05-04
1978-12-12
Bertsch, Richard A.
Motor vehicles
Special driving device
Portable track
280 1111E, B62M 2700
Patent
active
041291930
ABSTRACT:
A propulsion system for a snow going device having a tread circulateably supported around an elongated body with skirt means on each side and extending below the elongated body for protecting the tread and improving the traction.
REFERENCES:
patent: 3853192 (1974-12-01), Husted
patent: 3931862 (1976-01-01), Cote
patent: 4036320 (1977-07-01), Rabehl
Bertsch Richard A.
Saroy Engineering
Shiber Samuel
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