Window-cleaning utensil.

Invention Grant

US952309A Window-cleaning utensil. 失效

Title translation: WINDOW清洁UTENSIL。

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Patent Title: Window-cleaning utensil.
Patent Title (中): WINDOW清洁UTENSIL。
Application No.: US1909501310

Application Date: 1909-06-10
Publication No.: US952309A

Publication Date: 1910-03-15
Inventor: COOVER CHARLES W
Applicant: COOVER CHARLES W
Assignee: Charles W Coover
Current Assignee: Charles W Coover
Priority: US1909501310 1909-06-10

Window-cleaning utensil.

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