https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=85647&pn=2,478,881 Tool for removing locking keys from brake anchor bolts Patentee: Carl B. Wayrynen - Denver CO Granted:1949-08-09

The specifications describe the structure of the brake anchor bolts and locking clip for which this tool was designed. The tool as produced kept the relative dimensions. Corresponding Canadian Patent CA-465,362 was assigned to Howry-Berg Steel and Iron Works. A known example is marked HOWRY-BERG Englewood, Colo.
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