Invention Grant
- Patent Title: Door-guide.
- Patent Title (中): 门禁指南
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Application No.: US1909522278Application Date: 1909-10-12
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Publication No.: US955502APublication Date: 1910-04-19
- Inventor: CROSBY RAYMOND A , MCGOODEN SAMUEL
- Applicant: CROSBY RAYMOND A , MCGOODEN SAMUEL
- Assignee: Raymond A Crosby,Samuel Mcgooden
- Current Assignee: Raymond A Crosby,Samuel Mcgooden
- Priority: US1909522278 1909-10-12
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