G - Physics – 01 – C
Patent
G - Physics
01
C
33/111
G01C 9/24 (2006.01) G01C 9/28 (2006.01)
Patent
CA 1044009
APPLICATION FOR UNITED STATES LETTERS PATENT TO ALL WHOM IT MAY CONCERN: Be it Known that I, Donald E. Wright, citizen of the United States of America and residing at 14265 Juneau Boulevard, Elm Grove, Waukesha County, Wisconsin 53122 have invented certain new and useful improvements in a LEVEL of which the following is a specification: ABSTRACT OF THE DISCLOSURE A level comprises a frame including a working sur- face, a level vial containing bubble indicating means and having bubble registry means adapted to register a level position when the longitudinal axis of the vial is positioned in a horizontal plane, and selectively adjustable mounting means for adjustably mounting the level vial to the frame for variable, selective angular alignment of the longitudinal axis thereof with respect to the plane of the working surface whereby the pre- selected orientation of the bubble indicating means with the register means of the level vial indicates a pre-selected angu- lar relationship of the longitudinal vial axis and the working surface when the working surface is in contact with a surface being measured.
256030
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