Invention Grant
- Patent Title: Mechanical refrigeration
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Application No.: US16442627Application Date: 1927-01-29
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Publication No.: US1688892APublication Date: 1928-10-23
- Inventor: SPREEN CHARLES C
- Applicant: SPREEN CHARLES C
- Assignee: Charles C Spreen
- Current Assignee: Charles C Spreen
- Priority: US16442627 1927-01-29
- Main IPC: F25B39/02
- IPC: F25B39/02
Public/Granted literature
- US11290426B2 Block chain network and hash-based cuckoo filter Public/Granted day:2022-03-29
Information query
