Invention Grant
- Patent Title: Oil seal and dust guard
- Patent Title (中): 油封和防尘罩
-
Application No.: US34442929Application Date: 1929-03-05
-
Publication No.: US1989110APublication Date: 1935-01-29
- Inventor: PENNIMAN WILLIAM B D
- Applicant: PENNIMAN WILLIAM B D
- Assignee: William B D Penniman
- Current Assignee: William B D Penniman
- Priority: US34442929 1929-03-05; GB3234430 1930-10-28
- Main IPC: B61F15/22
- IPC: B61F15/22
Information query
