[N314241] Technical Note, March 28th, 1886
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Title
[N314241] Technical Note, March 28th, 1886
Editor's Notes
drawing "Good! Bladder or metal, Rubber etc compressed air also [nat?] thin dia membrane to ear tube completely enveloped with coned circle"
Author
Date
1886-03-28
Type
Folder/Volume ID
N314-F
Microfilm ID
42:933
Document ID
N314241
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University