Chalkline string holder

Details Chalkline string holder Chalkline string holder

1989-05-11

1990-06-12

Haroian, Harry N.

Geometrical instruments

Straightedge type

Wall guide and plumb

33410, B43L 1300

Patent

active

049321358

ABSTRACT:
There is provided a chalkline string holder for positioning and anchoring the free end of a chalkline string, thereby allowing a single operator to pay-out, stretch, and snap the chalkline string without assistance from another.

REFERENCES:
patent: 2508076 (1950-05-01), Palmer
patent: 2659973 (1953-11-01), Patzel
patent: 2893125 (1959-07-01), Kampel
patent: 2919489 (1960-01-01), Espinosa
patent: 3148453 (1964-09-01), Di Carlo
patent: 3751810 (1973-08-01), Valva

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