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Mar. 27 Cordless Telephone - An experimental cordless extension telephone that permits simultaneous two-way conversation has been developed at the Bell Telephone Laboratories in New Jersey
Picture No
13214746
Media ID
46960707
Size
3559px x 5763px
(1.2MB)
Credit
(c) Keystone Pictures USA/ZUMAPRESS.com/Mary Evans
Usage Restrictions
Editorial Use Only - No Property or Model Releases. For any non-editorial use, please contact Mary Evans direct
Source
Keystone Pictures USA
Pick your License
Restrictions Only for United Kingdom
Cordless Developed Experimental Extension Laboratories Permits Simultaneous Two-way
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