Electrical resistance material.

Invention Grant

US839257A Electrical resistance material. 失效

Title translation: 电阻材料

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Patent Title: Electrical resistance material.
Patent Title (中): 电阻材料
Application No.: US1906294709

Application Date: 1906-01-05
Publication No.: US839257A

Publication Date: 1906-12-25
Inventor: BENECKE ADELBERT O
Applicant: AMERICAN INSTR COMPANY
Assignee: American Instr Company
Current Assignee: American Instr Company
Priority: US1906294709 1906-01-05

Electrical resistance material.

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