Invention Room details
Viewed: 3324 times.
|
Dynamic Accentor
Viewed: 3044 times.
|
1-Aug-1956 article on Dynamic Accentor
Viewed: 2654 times.
|
1912 Hammond was a US Delegate to the Int'l Telegraphic Conf in London
Viewed: 3656 times.
|
Alexander Graham Bell and John Hays Hammond Jr.
Viewed: 3834 times.
|
Castle lobby area was lab and business office
Viewed: 3143 times.
|
Dr. Hammond at his office desk
Viewed: 2804 times.
|
Hammond on the stairs in the Great Hall
Viewed: 2793 times.
|
Hammond watching his pipe organ being manufactured
Viewed: 2957 times.
|
1
