| Patents for Adolph L. De Leeuw |
Patents 1 -
15
of 33
      |
| Number | Date | Patentee | Title | Type |
| 713,614 | Nov. 18, 1902 | A.L. De Leeuw | Tool Relief for Metal Planers | metal planer tool holders |
| 721,942 | Mar. 03, 1903 | A.L. De Leeuw | Electric Switch System | machine tool controls |
| 723,840 | Mar. 31, 1903 | A.L. De Leeuw | Controlling Switch System | machine tool controls |
| 764,115 | Jul. 05, 1904 | A.L. De Leeuw | Speed Changer | metalworking speed changing mechanisms |
| 889,768 | Jun. 02, 1908 | A.L. De Leeuw | Locking Mechanism for Machine Tools | metalworking machine mechanisms |
| 905,506 | Dec. 01, 1908 | A.L. De Leeuw | Variable Speed Mechanism | metalworking speed changing mechanisms |
| 911,951 | Feb. 09, 1909 | A.L. De Leeuw | Variable Speed Mechanism | metalworking variable speed mechanisms |
| 914,643 | Mar. 09, 1909 | A.L. De Leeuw | Variable Speed Mechanism | metalworking variable speed mechanisms |
| 927,776 | Jul. 13, 1909 | A.L. De Leeuw | Milling Machine | milling machines |
| 943,142 | Dec. 14, 1909 | A.L. De Leeuw | Variable Speed Driving Mechanism | metalworking variable speed mechanisms |
| 961,405 | Jun. 14, 1910 | S. Einstein, A.L. De Leeuw | Feed Controlling Mechanism | metalworking machine mechanisms |
| 964,764 | Jul. 19, 1910 | A.L. De Leeuw | Spindle Locking Mechanism for Machine Tools | milling machines |
| 973,766 | Oct. 25, 1910 | A.L. De Leeuw | Milling Machine | milling machines |
| 974,036 | Oct. 25, 1910 | A.L. De Leeuw | Milling Machine | milling machines |
| 980,614 | Jan. 03, 1911 | A.L. De Leeuw | Milling Machine | milling machines |
