Manually controlled pencil with physically turned push pin

Application Number: 00113107Application Date: 2000.08.15Publication Number: 1338391Publication Date: 2002.03.06Priority Information: International: B43K21/08Applicant(s) Name: You XianbingAddress: Inventor(s) Name: You XianbingPatent Agency Code: 51123Patent Agent: kang haiyanAbstract A manually controlled pencil is composed of holder and lead core. Said holder consists of a screw push rod which is an internally screwed rod and has a central push Read more

Filter for physically removing bacterial suspended matter and solid particles in water

Application Number: 00106931Application Date: 2000.04.21Publication Number: 1271619Publication Date: 2000.11.01Priority Information: 1999/4/22 DE 19918221.3International: B01D63/02Applicant(s) Name: Derfen Environmental Technology AGAddress: Inventor(s) Name: S. Brin;-Saifils;R. PlassPatent Agency Code: 72001Patent Agent: xiao chunjingAbstract The invention relates to a filter device for the physical elimination of microbes, suspended matter and solids from water, which in a housing has a Read more