| Patents for John Lang & Sons, Ltd. |
Patents 1 -
4
of 4
      |
| Picture | Number | Date | Patentee | Title |
 | GB-337,237 | Oct. 30, 1930 | W.B. Lang | Improvements Relating to Roller Bearings for Lathes and Other Machine Tools |
 | GB-432,528 | Jul. 29, 1935 | E. Shackleton, W.B. Lang | Improvements in and Relating to Mounting Arrangements for the Chucks or the Like of Machine Tools Such as Lathes and the Like |
 | GB-658,590 | Oct. 10, 1951 | J.B. Lang, D.M. Blackburn | Tool-holder Attachment for Lathes and Like Machine Tools |
| | 2,972,487 | Feb. 21, 1961 | D.M. Blackburn | Indexing Mechanism |
