Alternating-current-retaining device for electric-motor controllers.

Invention Grant

US844650A Alternating-current-retaining device for electric-motor controllers. 失效

Title translation: 电动马达控制器交流电流保持装置。

Patent Title: Alternating-current-retaining device for electric-motor controllers.
Patent Title (中): 电动马达控制器交流电流保持装置。
Application No.: US1903179548

Application Date: 1903-11-02
Publication No.: US844650A

Publication Date: 1907-02-19
Inventor: BARNUM THOMAS E
Applicant: CUTLER HAMMER MFG CO
Assignee: Cutler Hammer Mfg Co
Current Assignee: Cutler Hammer Mfg Co
Priority: US1903179548 1903-11-02

Information query

Espacenet