Plumb bar

Details Plumb bar Plumb bar

1985-07-16

1987-06-23

Martin, Jr., William D.

Geometrical instruments

Miscellaneous

Light direction

33286, 33290, 33392, 33DIG21, 33464, G01C 1500

Patent

active

046741887

ABSTRACT:
A bar for temporarily securing to the housing of a construction laser so as to be able to measure accurately off to one side so that a plumb line can be established when there is an obstruction above the laser housing. The bar has means for a quick disconnect fitting on the handle of the laser.

REFERENCES:
patent: 1623117 (1927-04-01), Holland
patent: 2475745 (1949-07-01), Humlegard
patent: 3279070 (1966-10-01), Blount et al.
patent: 3591926 (1971-07-01), Trice, Jr.
patent: 4319402 (1982-03-01), Martin

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