FIELD: instrument engineering.
SUBSTANCE: inventions refer to clock-making industry. This effect is provided by that in making a dial, a base is shaped after a case for at least one individual optical instrument that is glasses, whereas a body of a dial mark is shaped as individual optical instrument that is glasses.
EFFECT: extended range of products.
2 cl, 2 dwg
Authors
Dates
2009-08-27—Published
2008-02-11—Filed