AU138927B2 - Improvements in or relating to lo udspeaking telephone instruments - Google Patents

Improvements in or relating to lo udspeaking telephone instruments

Info

Publication number
AU138927B2
AU138927B2 AU10406/47A AU1040647A AU138927B2 AU 138927 B2 AU138927 B2 AU 138927B2 AU 10406/47 A AU10406/47 A AU 10406/47A AU 1040647 A AU1040647 A AU 1040647A AU 138927 B2 AU138927 B2 AU 138927B2
Authority
AU
Australia
Prior art keywords
udspeaking
relating
telephone instruments
instruments
telephone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
AU10406/47A
Other versions
AU1040647A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of AU1040647A publication Critical patent/AU1040647A/en
Publication of AU138927B2 publication Critical patent/AU138927B2/en
Expired legal-status Critical Current

Links

AU10406/47A 1947-03-05 Improvements in or relating to lo udspeaking telephone instruments Expired AU138927B2 (en)

Publications (2)

Publication Number Publication Date
AU1040647A AU1040647A (en) 1947-04-03
AU138927B2 true AU138927B2 (en) 1947-04-03

Family

ID=

Similar Documents

Publication Publication Date Title
AU138927B2 (en) Improvements in or relating to lo udspeaking telephone instruments
AU1040647A (en) Improvements in or relating to lo udspeaking telephone instruments
AU138163B2 (en) Improvements in telephone instruments
AU1419047A (en) Improvements in telephone instruments
AU147961B2 (en) Improvements in and relating to frtfing instruments
AU140051B2 (en) Improvements in or relating to doorlocks
AU136265B2 (en) Improvements in or relating to keyholders
AU137693B2 (en) Improvements in or relating to gyro-verticals
AU135753B2 (en) Improvements in or relating to shoe-trees
AU139092B2 (en) Improvements in or relating to suction-cleaners
AU138375B2 (en) Improvements in or relating to doorlocks
AU135911B2 (en) Improvements in or relating to doorlocks
AU138148B2 (en) Improvements in or relating to whistles
AU143160B2 (en) Improvements in or relating to electroacoustic devices
AU136453B2 (en) Improvements in or relating to gyroscopic instruments
AU134265B2 (en) Improvements in or relating to fair-lead construction
AU1524047A (en) Improvements in and relating to frtfing instruments
AU137915B2 (en) Improvements in or relating to substation telephone sets
AU137058B2 (en) Improvements in or relating to measuring devices
AU137059B2 (en) Improvements in or relating to measuring devices
AU147172B2 (en) Improvements in or relating to telecommunication systems
AU1684247A (en) Improvements in or relating to doorlocks
AU1548747A (en) Improvements in or relating to keyholders
AU1295147A (en) Improvements in or relating to gyro-verticals
AU1455547A (en) Improvements in or relating to suction-cleaners