Geometrical instruments – Area integrators – Electrical
Patent
1977-12-19
1979-07-10
Stephan, Steven L.
Geometrical instruments
Area integrators
Electrical
33138, G01B 310
Patent
active
041603249
ABSTRACT:
A tool for quickly and easily laying out all of the components of a baseball diamond, the tool consisting of an elongated tape, or equivalent flexible object, which has a row of openings along its length that are properly spaced apart and from its end, each opening being identified, and the tape being adaptable to be wound up upon a reel, for convenient carrying by a person; the tool being associated with an instruction booklet for proper use of the tool.
REFERENCES:
patent: 3039197 (1962-06-01), Abbott
patent: 3668781 (1972-06-01), Teter
La Mara Donald E.
Mercedes A.
Stephan Steven L.
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