Invention Grant
- Patent Title: Automatic hose-coupling.
- Patent Title (中): 自动软管接头
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Application No.: US11561716Application Date: 1916-08-18
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Publication No.: US1263574APublication Date: 1918-04-23
- Inventor: LEFTWICH ROBERT FRANK
- Applicant: LEFTWICH ROBERT FRANK
- Assignee: Robert Frank Leftwich
- Current Assignee: Robert Frank Leftwich
- Priority: US11561716 1916-08-18
Public/Granted literature
- US08253115B1 Infrared fluorescing optical signature agent for real time change detection Public/Granted day:2012-08-28
Information query
