Title:
AUXILIARY TOOL FOR FITTING SPECTACLES LENSES INTO A FRAME
Document Type and Number:
Japanese Patent JPS51147337
Kind Code:
A
Abstract:
PURPOSE: Drawing small centre circles for distance and near, using an auxiliary tool, made of transparent plastic sheet and having the minimum and necessary field limit of vision for dual-purpose spectacles at up and down edge, to polish and glaze easily dual-purpose spectacles glasses.
Inventors:
TSUKAMOTO TAKESHI
Application Number:
JP7178575A
Publication Date:
December 17, 1976
Filing Date:
June 13, 1975
Export Citation:
Assignee:
HOYA LENS CO LTD
International Classes:
G02C13/00; G02C3/00; (IPC1-7): G02C3/00