Attached files

file filename
EX-32.1 - SIGMA LABS, INC.ex32-1.htm
EX-31.2 - SIGMA LABS, INC.ex31-2.htm
EX-31.1 - SIGMA LABS, INC.ex31-1.htm
EX-23.2 - SIGMA LABS, INC.ex23-2.htm
EX-23.1 - SIGMA LABS, INC.ex23-1.htm
10-K - SIGMA LABS, INC.form10-k.htm