Invention Grant
- Patent Title: Clock mechanism
- Patent Title (中): 时钟机制
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Application No.: US17572227Application Date: 1927-03-16
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Publication No.: US1765677APublication Date: 1930-06-24
- Inventor: KALCK FRED R
- Applicant: KALCK FRED R
- Assignee: Fred R Kalck
- Current Assignee: Fred R Kalck
- Priority: US17572227 1927-03-16
- Main IPC: G04B19/16
- IPC: G04B19/16 ; G04B45/00 ; G09F23/16
Public/Granted literature
- US20220128438A1 TRANSPARENT SKIN SAMPLE Public/Granted day:2022-04-28
Information query
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