Geometrical instruments – Miscellaneous – Light direction
Patent
1977-03-09
1979-01-02
Aegerter, Richard E.
Geometrical instruments
Miscellaneous
Light direction
33 1V, 33 1BB, 33121, 128 2S, G01B 1128, G01B 314
Patent
active
041319982
ABSTRACT:
A device for measuring growth of tumors includes concentric rings on a carrier, the radial spacing of the rings from one another progressively increasing in a radially outward direction.
REFERENCES:
patent: 1780237 (1930-11-01), Leslie
patent: 2016346 (1935-10-01), Smith
patent: 2557428 (1951-06-01), Grostic
Aegerter Richard E.
Haefliger William W.
Shepperd John W.
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