Chain saw sighting device

Details Chain saw sighting device Chain saw sighting device

1980-03-20

1982-03-16

Martin, Jr., William D.

Geometrical instruments

Straight-line light ray type

Structurally installed

33185R, 356 3, G02B 2300

Patent

active

043194044

ABSTRACT:
A sighting device attachment for a chain saw allows an operator to measure desired lengths to be cut which are substantially greater than the size of the attachment, and allows adjustment to provide a wide variety of lengths.

REFERENCES:
patent: 1568759 (1926-01-01), Magin et al.
patent: 1843419 (1932-02-01), Francis
patent: 3531870 (1970-10-01), Romancky
patent: 4158259 (1979-06-01), Hansen et al.

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