Hughes, David Edward, 1829-1900

Anglo-American electrician and inventor of the carbon microphone.

From the description of David E. Hughes letters, 1889-1890. (Unknown). WorldCat record id: 80218399

Publication Date	Publishing Account	Status	Note	View
2021-01-16 09:01:19 pm	Levana Taylor	published	User published constellation	Details HRT Changes Compare
2016-08-12 11:08:30 pm	System Service	published		Details HRT Changes Compare
2016-08-12 11:08:30 pm	System Service	ingest cpf	Initial ingest from EAC-CPF	Pre-Production Data Additional Details - 2016-08-12 11:08:30 pm This Constellation was ingested from EAC-CPF and contains the following additional historical control information. Previous Maintenance Events 2015-09-24 - revised CPF merge program Merge v2.0

Publication Date

Publishing Account

Status

Note

View

2021-01-16 09:01:19 pm

Levana Taylor

published

User published constellation

Details HRT Changes Compare

2016-08-12 11:08:30 pm

System Service

published

Details HRT Changes Compare

2016-08-12 11:08:30 pm

System Service

ingest cpf

Initial ingest from EAC-CPF

Pre-Production Data

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