Geometrical instruments – Area integrators – Electrical
Patent
1981-05-18
1983-12-06
Haroian, Harry N.
Geometrical instruments
Area integrators
Electrical
33137R, G01B 310
Patent
active
044184778
ABSTRACT:
A measuring device for ascertaining the perimeter of a cross-section of a body comprising an integral tape and slide guide. Laterally extending tabs at one end of the tape are foldable over a portion of the tape bent back upon the tab bearing end to form the slide guide. An aperture in the tab bearing end cooperates with indicia on the tape to display the perimeter of the tape loop extending from the slide guide.
REFERENCES:
patent: 458564 (1891-09-01), Engel
patent: 766911 (1904-08-01), Stemm
patent: 846461 (1907-03-01), Engel
patent: 1238841 (1917-09-01), Snider
patent: 1491444 (1924-04-01), Trahms
Haroian Harry N.
Jobst Institute Inc.
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