Revolving door with non-concentric casing.

Invention Grant

US947504A Revolving door with non-concentric casing. 失效

Title translation: 改装门与非集中箱。

Please log in to see more content

Patent Title: Revolving door with non-concentric casing.
Patent Title (中): 改装门与非集中箱。
Application No.: US1909505493

Application Date: 1909-07-01
Publication No.: US947504A

Publication Date: 1910-01-25
Inventor: KANNEL THEOPHILUS VAN
Applicant: KANNEL REVOLVING DOOR COMPANY VAN
Assignee: Kannel Revolving Door Company Van
Current Assignee: Kannel Revolving Door Company Van
Priority: US1909505493 1909-07-01

Revolving door with non-concentric casing.

Information query

Espacenet

Patent Agency Ranking