Invention Grant
- Patent Title: Liquid-sealed heat exchanger
- Patent Title (中): 液密热交换器
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Application No.: US17855427Application Date: 1927-03-26
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Publication No.: US1745135APublication Date: 1930-01-28
- Inventor: WILLCOX FREDERICK H
- Applicant: FREYN ENGINEERING CO
- Assignee: Freyn Engineering Co
- Current Assignee: Freyn Engineering Co
- Priority: US17855427 1927-03-26; US276325 1925-01-16
- Main IPC: C21B9/12
- IPC: C21B9/12
Public/Granted literature
- US20240007154A1 BEAMFORMING TECHNIQUES IN WI-FI FREQUENCY BANDS Public/Granted day:2024-01-04
Information query
