Flexible metallic shutter.

Invention Grant

US845526A Flexible metallic shutter. 失效

Title translation: 柔性金属开关。

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Patent Title: Flexible metallic shutter.
Patent Title (中): 柔性金属开关。
Application No.: US1906317425

Application Date: 1906-05-18
Publication No.: US845526A

Publication Date: 1907-02-26
Inventor: COLLINS THOMAS E
Applicant: COLLINS THOMAS E
Assignee: Thomas E Collins
Current Assignee: Thomas E Collins
Priority: US1906317425 1906-05-18

Flexible metallic shutter.

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