Patent search ap:("MORRIS GOLDSTONE") AND inv:"COLEMAN HAROLD H" Page 1

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发明授权
Automatic switch for vacuum cleaners 失效
Title translation: 真空吸尘器自动开关

公开(公告)号：US2093419A

公开(公告)日：1937-09-21

申请号：US8284036

申请日：1936-06-01

Applicant: MORRIS GOLDSTONE

Inventor： COLEMAN HAROLD H

IPC: H01H29/20

CPC classification number: H01H29/20 , Y10S15/10

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