Self-propelled working vehicle

Excavating – Snow or ice removing or grooming by portable device – Motorized rotary excavating tool

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Details

37257, 192 354, E01H 509

Patent

active

045149178

ABSTRACT:
A self-propelled working vehicle including an engine, a working implement and a running mechanism driven both by the engine, and a friction disc type main transmission for transmitting the driving power of the engine to the running mechanism. The working vehicle has a sub-transmission interposed between the engine and the main transmission.

REFERENCES:
patent: 2809389 (1957-10-01), Collins et al.
patent: 3423856 (1969-01-01), Fisue
patent: 3580351 (1971-05-01), Mollen
patent: 3791052 (1974-02-01), Van Derlely
patent: 4101014 (1978-07-01), Matheson
patent: 4457086 (1984-07-01), Bacon

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