Air-bubble level for portable tools

Details Air-bubble level for portable tools Air-bubble level for portable tools

1988-10-14

1990-03-20

Haroian, Harry N.

Geometrical instruments

Indicator of direction of force traversing natural media

Structurally installed including relation to feature thereof

33347, 33390, 33372, G01C 928

Patent

active

049089498

ABSTRACT:
Air-bubble level for portable tools which can be used and operated independently from any changes in position of the tool and which can be easily transferred between tools due to its articulated fastening device.

REFERENCES:
patent: 3807051 (1974-04-01), Funakubo
patent: 4276460 (1981-06-01), Haesly

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