Invention Grant
- Patent Title: Continuous foam-producing method and apparatus
- Patent Title (中): 连续发泡方法和装置
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Application No.: US22256727Application Date: 1927-09-28
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Publication No.: US1781298APublication Date: 1930-11-11
- Inventor: PRUTZMAN PAUL W
- Applicant: PRUTZMAN PAUL W
- Assignee: Paul W Prutzman
- Current Assignee: Paul W Prutzman
- Priority: US22256727 1927-09-28
- Main IPC: A62C5/00
- IPC: A62C5/00
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