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All Patents in class 403/383 | |||||
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Picture | Number | Date | Patentee | Title | |
1,018,172 | Feb. 20, 1912 | S.T. Downs | Service Box Key | ||
![]() | 1,056,466 | Mar. 18, 1913 | P.A. Solem | Cutter-head-securing means | |
1,189,606 | Jul. 04, 1916 | W.L. Miller | Safety Crank for Shafts | ||
1,954,049 | Apr. 10, 1934 | R.K. Jeffery | Tool Holder | ||
![]() | 2,874,985 | Feb. 24, 1959 | C.J. March | Drill chuck and spindle connection |