Title:
【考案の名称】緊急避難用呼吸補助防具
Document Type and Number:
Japanese Patent JPS58152948
Kind Code:
U
Inventors:
Yuzo Koyama
Application Number:
JP4771982U
Publication Date:
October 13, 1983
Filing Date:
March 31, 1982
Export Citation:
International Classes:
A62B7/12; (IPC1-7): A62B7/12