| Patents for Lorenz Albert Leifer | 
| Patents 1 - 
					10
					of 10 
       | 
| Number | Date | Patentee | Title | Type | 
| 2,528,442 | Oct. 31, 1950 | L.A. Leifer | Power Chuck | metal lathe chucks | 
| 2,543,857 | Mar. 06, 1951 | L.A. Leifer | Collet Chuck | metal lathe chucks | 
| 2,573,152 | Oct. 30, 1951 | L.A. Leifer | Forward and Reverse Drive for Lathe Spindles | metalworking machine mechanisms | 
| 2,616,323 | Nov. 04, 1952 | L.A. Leifer | Power Actuated Wrench | metal lathe accessories and attachments | 
| 2,687,197 | Aug. 24, 1954 | L.A. Leifer | Clutch and Brake for Direct Drive Spindle Lathes | metalworking power transmission | 
| 2,725,775 | Dec. 06, 1955 | L.A. Leifer | High-Speed Motor-Driven Lathe and Temperature Control Means | metalworking machine mechanisms | 
| 2,729,459 | Jan. 03, 1956 | L.A. Leifer | Balanced Rotary Chuck | metal lathe chucks | 
| 2,736,207 | Feb. 28, 1956 | L.A. Leifer | Hydraulic Motor Adjustment for Machine Tools | metalworking machine mechanisms | 
| 2,882,760 | Apr. 21, 1959 | L.A. Leifer | Infinitey Variable Incremental Feed Control | metalworking speed changing mechanisms | 
| 2,952,168 | Sep. 13, 1960 | L.A. Leifer | Automatic Ram-Type Turret Lathe | turret lathes |