- Lacquer
- 08-010 14-152 14-153
- Laminates
- 08-318 11-OS100 11-OS101 11-OS108 11-OS109 11-OS28 11-OS96 14-024
- Laminatio
- 10-027 11-OS131 11-OS64 11-OS67 15-OS3
- Lance, G.N.
- 01-007 06-017
- Lane, J.
- 03-029
- Lapping and Polishing
- 08-187 08-188
- Lattimore, S.
- 04-001 04-004
- Lee, R.A.
- 02-002 02-003 03-005 03-006 03-016 03-029 03-038 06-001 06-031 06-032 06-034 08- 08- 08- 08- 08- 08-033 08-302 08-303 08-304
- Lennox, F.G.
- 06-022
- Lewis, G.
- 05-011
- Linton, M.
- 03-030 03-031
- Liquid crystals
- 08-095 11-OS105 14-186
- Loder, J.
- 08-
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