Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Patent
1990-01-30
1991-09-10
Haroian, Harry N.
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
33334, 33371, 33391, G01C 906
Patent
active
050462610
ABSTRACT:
A leveling device for leveling tools and workpieces which has extending shafts at opposite ends with one shaft being adapted to be inserted into a tool so as to adjust and indicate whether it is level and the other shaft being adjusted to receive a drilling or grinding tool or a flat plate such that the surface of a workpiece can be leveled.
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patent: 4516329 (1985-05-01), Dilcox
patent: 4571844 (1986-02-01), Komasaku et al.
patent: 4800542 (1989-01-01), Franklin et al.
Haroian Harry N.
Kwik-Way Manufacturing Co.
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