Chalk line marking device

Details Chalk line marking device Chalk line marking device

1987-12-07

1989-04-11

Haroian, Harry N.

Geometrical instruments

Straightedge type

Cord type

33756, B44D 338

Patent

active

048193372

ABSTRACT:
A carpenter' chalk marking device for producing marks at regular intervals along a straight line upon a working surface, characterized by chalk marking units mounted along a chalk line and configured to hold the line from contact with the marking surface to prevent extraneous marks. The device also includes a chalk containing canister with a storage spool for the chalk line.

REFERENCES:
patent: 265815 (1982-10-01), Jenkins
patent: 338527 (1986-03-01), Hyde
patent: 773016 (1904-10-01), Keuffel
patent: 4152836 (1979-05-01), Rodrique
patent: 4660291 (1987-04-01), Dehn

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