US PATENT SUBCLASS 33 / 406
.~.~ Adjustable vertically
Current as of:
June, 1999
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GEOMETRICAL INSTRUMENTS
403
DF
STRAIGHTEDGE TYPE
{16}
404
DF
.~ Wall guide and plumb (e.g., building construction) {3}
406
.~.~ Adjustable vertically
DEFINITION
Classification: 33/406
Adjustable vertically:
(under subclass 404) Subject matter wherein the devices can be moved in an up or down direction along the building or wall portion.