AU499721A - Improved means for controlling electric currents and for detecting or recording radio signals - Google Patents

Improved means for controlling electric currents and for detecting or recording radio signals

Info

Publication number
AU499721A
AU499721A AU4997/21A AU499721A AU499721A AU 499721 A AU499721 A AU 499721A AU 4997/21 A AU4997/21 A AU 4997/21A AU 499721 A AU499721 A AU 499721A AU 499721 A AU499721 A AU 499721A
Authority
AU
Australia
Prior art keywords
detecting
radio signals
electric currents
improved means
controlling electric
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
AU4997/21A
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Filing date
Publication date
Application filed by Marconis Wireless Telegraph Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of AU499721A publication Critical patent/AU499721A/en
Expired legal-status Critical Current

Links

AU4997/21A 1921-12-24 Improved means for controlling electric currents and for detecting or recording radio signals Expired AU499721A (en)

Publications (1)

Publication Number Publication Date
AU499721A true AU499721A (en) 1922-07-04

Family

ID=

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU737435B2 (en) * 1997-04-11 2001-08-16 Bpb Plc Method and punch for perforating cementitious tiles and so obtained cementitious tiles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU737435B2 (en) * 1997-04-11 2001-08-16 Bpb Plc Method and punch for perforating cementitious tiles and so obtained cementitious tiles

Similar Documents

Publication Publication Date Title
AU499721A (en) Improved means for controlling electric currents and for detecting or recording radio signals
CA226649A (en) Carrier current signal system
CA196389A (en) Current amplifying system
CA196390A (en) Current amplifying system
CA230140A (en) Control switch for electric signals
CA222735A (en) Circuit control for signals
CA225708A (en) Electric signal
AU354321A (en) Improved hornor amplifier for phonographs andthe like
CA241138A (en) Electric current amplifier
AU1645820A (en) Amplifying current
CA196421A (en) Radio signal apparatus
CA212565A (en) Recorder for electrical distribution
CA220315A (en) Amplifier for phonographs
AU1398123A (en) Improvements in electric signals
CA230117A (en) Electric signal
CA203824A (en) Detection signal
CA253356A (en) Control switch for vehicle signal
CA209934A (en) Signal
CA225676A (en) Electric signal alarm
CA205754A (en) Track signal
CA201351A (en) Track signal
CA211862A (en) Disc suspension insulator
CA225190A (en) Means of measuring electric currents
CA208289A (en) Electric control system
CA220496A (en) Track signal