Rectifying electric currents.

Invention Grant

US974171A Rectifying electric currents. 失效

Title translation: 修复电流。

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Patent Title: Rectifying electric currents.
Patent Title (中): 修复电流。
Application No.: US1909515107

Application Date: 1909-08-28
Publication No.: US974171A

Publication Date: 1910-11-01
Inventor: MONTGOMERY JOHN J
Applicant: MONTGOMERY JOHN J
Assignee: John J Montgomery
Current Assignee: John J Montgomery
Priority: US1909515107 1909-08-28

Rectifying electric currents.

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