Invention Grant
- Patent Title: Projection screen
- Patent Title (中): 投影屏幕
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Application No.: US13572737Application Date: 1937-04-08
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Publication No.: US2107038APublication Date: 1938-02-01
- Inventor: MCLENNAN LENNARD
- Applicant: MCLENNAN LENNARD
- Assignee: Lennard Mclennan
- Current Assignee: Lennard Mclennan
- Priority: GB2107038X 1936-04-06
- Main IPC: G03B21/60
- IPC: G03B21/60
Public/Granted literature
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