CultureTechLens logoCULTURETECHLENS

“Culture, Clearly Seen.” Black Cultural Intelligence

Subscribe to CTL 10

Tech, Software & Devices

CTL-T-19 · Topic

STRONG EVIDENCE evidence grade — master store (canonical CSV)

Combined Graph record U-00026 · provenance: canonical master store (CSV), record CTL-T-19. Master record source: CTL seed 2026-10-16 — UNVERIFIED, verify before public citation.

The Smithsonian Lemelson Center documents African American inventors across food, transportation, medicine, and communications — e.g., Mark E. Dean holds three of the nine patents for the original IBM personal computer, and Valerie L. Thomas (NASA) received U.S. Patent 4,229,761 for the 'illusion transmitter' (1980) — the technology/invention core of this lane's scope. The lane framing is CTL's own taxonomy. (fetched in full 2026-10-17)

Answer summary · this record in brief, from its own record text

The Smithsonian Lemelson Center documents African American inventors across food, transportation, medicine, and communications — e.g., Mark E. Dean holds three of the nine patents for the original IBM personal computer, and Valerie L. Thomas (NASA) received U.S. Patent 4,229,761 for the 'illusion transmitter' (1980) — the technology/invention core of this lane's scope. The lane framing is CTL's own taxonomy. (fetched in full 2026-10-17)

The record

Referenced by

Sources

Evidence note (master store)

The Smithsonian Lemelson Center documents African American inventors across food, transportation, medicine, and communications — e.g., Mark E. Dean holds three of the nine patents for the original IBM personal computer, and Valerie L. Thomas (NASA) received U.S. Patent 4,229,761 for the 'illusion transmitter' (1980) — the technology/invention core of this lane's scope. The lane framing is CTL's own taxonomy. (fetched in full 2026-10-17)

More topic records

Browse the full directory: all entity records

Record CTL-T-19 · Combined Graph record U-00026 · CultureTechLens Knowledge Graph · 1 source · 2 mapped relationships.
Directory: all entity records · the knowledge graph

Researched and maintained by the CultureTechLens research program · CultureTechLens Combined Graph, Release 2026-11-04. Corrections are public: the corrections log.

Cite this record

Cite as: CultureTechLens, “Tech, Software & Devices (CTL-T-19),” CultureTechLens Combined Graph, Release 2026-11-04. https://culturetechlens.com/graph/entities/ctl-t-19/

Chicago: CultureTechLens. “Tech, Software & Devices (CTL-T-19).” CultureTechLens Combined Graph. Chicago, IL: CultureTechLens, 2026. https://culturetechlens.com/graph/entities/ctl-t-19/
APA: CultureTechLens. (2026). Tech, Software & Devices (CTL-T-19) [Entity record]. CultureTechLens Combined Graph. https://culturetechlens.com/graph/entities/ctl-t-19/
MLA: CultureTechLens. “Tech, Software & Devices (CTL-T-19).” CultureTechLens Combined Graph, 2026, https://culturetechlens.com/graph/entities/ctl-t-19/

Citation guidance for teachers, journalists, and funders: How to Cite Us.

From the Archive

The archive in pictures

The people, places, and institutions this work documents. Photographs from the CultureTechLens research record — rights-cleared, credited, and cited like everything else here.

Negro grocery store, Black Belt, Chicago, Illinois, Chicago, 1941 — CultureTechLens
Negro grocery store, Black Belt, Chicago, Illinois, Chicago, 1941 — CultureTechLensPhoto: Rosskam, Edwin, 1903-1985, FSA-OWI, Public Domain, via Library of Congress
Negro grocery store, Black Belt, Chicago, Illinois, Chicago, 1941 — CultureTechLens
Negro grocery store, Black Belt, Chicago, Illinois, Chicago, 1941 — CultureTechLensPhoto: Rosskam, Edwin, 1903-1985, FSA-OWI, Public Domain, via Library of Congress
Shoeshine, 47th Street, Chicago's main Negro business street, Chicago, Illinois, Chicago, 1941 — CultureTechLens
Shoeshine, 47th Street, Chicago's main Negro business street, Chicago, Illinois, Chicago, 1941 — CultureTechLensPhoto: Rosskam, Edwin, 1903-1985, FSA-OWI, Public Domain, via Library of Congress

Trust & evidence

Evidence before authority. CultureTechLens publishes its methods, its limits, and its corrections alongside its findings. Claims carry grades — VERIFIED, SUPPORTED, PROVISIONAL, DISPUTED, UNRESOLVED — and unknowns are never reported as zero.

Every claim graded. Every source named. Every correction public — see the corrections log.