Vacuum-tube lamp.

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US853989A Vacuum-tube lamp. 失效

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Patent Title: Vacuum-tube lamp.
Application No.: US1904204175

Application Date: 1904-04-21
Publication No.: US853989A

Publication Date: 1907-05-21
Inventor: MOORE DANIEL MCFARLAN
Applicant: MOORE ELECTRICAL CO
Assignee: Moore Electrical Co
Current Assignee: Moore Electrical Co
Priority: US1904204175 1904-04-21

Vacuum-tube lamp.

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