Chalk box

Details Chalk box Chalk box

2007-08-31

2009-12-01

Fulton, Christopher W (Department: 2841)

Geometrical instruments

Straightedge type

Cord type

Reexamination Certificate

active

07624509

ABSTRACT:
A chalk box including a housing, a reel, a line, an opening through which the line enters and exits the housing, and a removable cap located proximate the opening. The chalk box may also include a seal or seals located between the handle and the chalk to inhibit entry of chalk in the area between the handle and the reel. The chalk box may also include one or more flat areas on the bottom surface of the chalk box to stabilize the chalk box during operation.

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