| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for William Joseph Grinden | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 577,653 | Feb. 23, 1897 | G. Amborn, Jr., W.J. Grinden | Chain Wrench | chain and strap wrenches | |
| 577,654 | Feb. 23, 1897 | W.J. Grinden, G. Amborn, Jr. | Chain Wrench | chain and strap wrenches | |
| CA-55,988 | May 19, 1897 | W.J. Grinden, G. Amborn | Chain Wrench | chain and strap wrenches | |
| CA-55,989 | May 19, 1897 | W.J. Grinden, G. Amborn | Chain Wrench | chain and strap wrenches | |
| GB-190,323,811 | Jan. 14, 1904 | W.J. Grinden | Improvements in Chain Pipe Vises | pipe and chain vises | |