Object Details
Collection Creator
Hammer, William J. (William Joseph), 1858-1934 (electrical engineer)
Collection Citation
William J. Hammer Collection, Archives Center, National Museum of American History
Scope and Contents note
Regarding long distance sound transmission
sova.nmah.ac.0069_ref1973
See more items in
William J. Hammer Collection
William J. Hammer Collection / Series 1: William J. Hammer Papers / 1.7: Patent Materials
Date
April 1892; October 27, 1902
Container
Box 21, Folder 21a
Archival Repository
Archives Center, National Museum of American History
Type
Archival materials
Collection Rights
Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.
Collection Restrictions
Collection is open for research.
NMAH.AC.0069_ref1973
Large EAD
https://n2t.net/ark:/65665/ep86c52e130-eaa7-475c-84ed-cd01a1600c59
NMAH.AC.0069
ACAH
Record ID
ebl-1503512957957-1503512958014-5