Document Type and Number:
Japanese Patent JPS5712217
Kind Code:
Y2
Application Number:
JP7839576U
Publication Date:
March 10, 1982
Filing Date:
June 15, 1976
Export Citation:
International Classes:
C02F1/00; F04B19/22; G01F1/00; G01F13/00; (IPC1-7): F04B19/22; C02F1/00