Access area measurement apparatus

Details Access area measurement apparatus Access area measurement apparatus

1991-10-22

1993-05-25

Will, Thomas B.

Geometrical instruments

Straightedge type

Combined with level

33476, 33494, B43L 7027, G01C 304, G01C 356

Patent

active

052128903

ABSTRACT:
An access area measurement apparatus includes a first elongated arm member of a defined length. A second arm member is fixed to and extends at a right angle from one end of the first arm member, and is shorter than the first arm member. The first arm member has a level to indicate that relative slope of a surface when the apparatus is placed on such a surface. The apparatus first arm member also includes a plurality of indicia for measuring compliance with ANSI and ADA accessibility standards.

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patent: 884773 (1908-04-01), Stark
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patent: 3210850 (1965-10-01), Grzyb
patent: 4301596 (1981-11-01), Sedlock
patent: 4693011 (1987-09-01), Strayham
patent: 4811489 (1989-03-01), Walker
patent: 4823469 (1989-04-01), Broselow

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