US1879168A - Safety snap hook - Google Patents
US1879168A US549825A US54982531A US1879168A US 1879168 A US1879168 A US 1879168A US 549825 A US549825 A US 549825A US 54982531 A US54982531 A US 54982531A US 1879168 A US1879168 A US 1879168A Authority US United States Prior art keywords tongue shank hook pivoted locking lever Prior art date 1931-07-10 Legal status (The legal status is an …
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