Invention Grant
- Patent Title: Locking device for camera shutters
- Patent Title (中): 相机百叶窗锁定装置
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Application No.: US20199227Application Date: 1927-06-28
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Publication No.: US1708547APublication Date: 1929-04-09
- Inventor: HANS LINDBERG
- Applicant: HANS LINDBERG
- Assignee: Lindberg Hans
- Current Assignee: Lindberg Hans
- Priority: US20199227 1927-06-28
- Main IPC: G03B9/58
- IPC: G03B9/58
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