In Yokoharna many companies exported raw silk at the end of 19th c . In the beginnilg of 20 血 c . some trading companies had the shading equipments that pu "ed in the w 血 dow fbr testing the quality of the raw siUk . That equipment was invented fbr testing the grcat deal raw sill ( hl l 901 when the national instltute fbr testing the raw sin( was enlarged . After that the equipment prevailed to the trading companies . In Yokoharna at the end of l 9 山 c . the tea 仕ad 血 g companies used the

more »

... r equipment called l 「 HIYOKE " for testing the quality of the tea. The equipmentS for the raw silk followed ones f { }r the tea. KeywortlS ! .