Casper, Michael

The Vibroplex semi-automatic telegraph key was invented by Horace G. Martin in 1905.

From the description of Michael and Cathi Casper telegraph key collection, 1858-1917. (Cornell University Library). WorldCat record id: 64054123

Publication Date	Publishing Account	Status	Note	View
2016-08-11 09:08:48 am	System Service	published		Details HRT Changes Compare
2016-08-11 09:08:48 am	System Service	ingest cpf	Initial ingest from EAC-CPF	Pre-Production Data Additional Details - 2016-08-11 09:08:48 am This Constellation was ingested from EAC-CPF and contains the following additional historical control information. Previous Maintenance Events 2015-09-18 - revised CPF merge program Merge v2.0

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Status

Note

View

2016-08-11 09:08:48 am

System Service

published

Details HRT Changes Compare

2016-08-11 09:08:48 am

System Service

ingest cpf

Initial ingest from EAC-CPF

Pre-Production Data

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