Invention Grant
- Patent Title: Auxiliary locking spring equipped tamper-proof padlock
- Patent Title (中): 辅助锁紧弹簧装备防撬弹簧
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Application No.: US3423969DApplication Date: 1967-06-22
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Publication No.: US3423969APublication Date: 1969-01-28
- Inventor: FOOTE DANIEL J
- Applicant: MASTER LOCK CO
- Assignee: Master Lock Co
- Current Assignee: Master Lock Co
- Priority: US64803267 1967-06-22
- Main IPC: E05B67/24
- IPC: E05B67/24
Information query
