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SIGMA LABS, INC.

SIC 4700 · Transportation Services
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$NTRP

SIGMA LABS, INC.

CIK:0000788611|SEC Filings

INDENTURES

EX-4.13
ex4-13.htm
2025-07-29T00:00:00Z
EX-4.11
ex4-11.htm
2025-07-29T00:00:00Z
EX-4.12
ex4-12.htm
2025-07-29T00:00:00Z
EX-4.10
ex4-10.htm
2025-07-15T00:00:00Z
EX-4.16
ex4-16.htm
2025-05-29T00:00:00Z
EX-4.17
ex4-17.htm
2025-05-29T00:00:00Z
EX-4.14
ex4-14.htm
2025-05-29T00:00:00Z
EX-4.13
ex4-13.htm
2025-05-29T00:00:00Z
EX-4.12
ex4-12.htm
2025-05-29T00:00:00Z
EX-4.11
ex4-11.htm
2025-05-29T00:00:00Z
EX-4.15
ex4-15.htm
2025-05-29T00:00:00Z
EX-4.23
ex4-23.htm
2025-05-29T00:00:00Z
EX-4.1
ex4-1.htm
2025-04-04T00:00:00Z
EX-4.1
ex4-1.htm
2026-07-22T00:00:00Z
EX-4.1
ex4-1.htm
2026-07-15T00:00:00Z
EX-4.3
ex4-3.htm
2026-07-15T00:00:00Z
EX-4.9
ex4-9.htm
2026-05-29T00:00:00Z
EX-4.15
ex4-15.htm
2026-05-29T00:00:00Z
EX-4.13
ex4-13.htm
2026-05-29T00:00:00Z
EX-4.12
ex4-12.htm
2026-05-29T00:00:00Z