Document Type and Number:
Japanese Patent JPS5549221
Kind Code:
Y2
Application Number:
JP3334777U
Publication Date:
November 17, 1980
Filing Date:
March 22, 1977
Export Citation:
International Classes:
B28B1/087; B28B1/08; B28B3/02; (IPC1-7): B28B3/02; B28B1/08