作者: Jr. Irving E. Sherman
DOI:
关键词: Engineering 、 Spring (mathematics) 、 Line (electrical engineering) 、 Electrical engineering 、 Engineering drawing
摘要: A drain cleanout tool includes a spring cable having an attached head which retains web of tangled monofilament line. The is directed down clogged in conventional manner, and the line will then become entangled with object trapped drain. can be withdrawn to unclog