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AU138230B2 - Improvements in or relating to apparatus for recording electric signals - Google Patents
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AU138230B2 - Improvements in or relating to apparatus for recording electric signals - Google Patents

Improvements in or relating to apparatus for recording electric signals

Info

Publication number
AU138230B2
AU138230B2 AU9252/47A AU925247A AU138230B2 AU 138230 B2 AU138230 B2 AU 138230B2 AU 9252/47 A AU9252/47 A AU 9252/47A AU 925247 A AU925247 A AU 925247A AU 138230 B2 AU138230 B2 AU 138230B2
Authority
AU
Australia
Prior art keywords
relating
electric signals
recording electric
recording
signals
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
AU9252/47A
Other versions
AU925247A (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.)
IPSOPHON PATENTGESELLSCHAFT AG
Original Assignee
IPSOPHON PATENTGESELLSCHAFT AG
Filing date
Publication date
Application filed by IPSOPHON PATENTGESELLSCHAFT AG filed Critical IPSOPHON PATENTGESELLSCHAFT AG
Application granted granted Critical
Publication of AU925247A publication Critical patent/AU925247A/en
Publication of AU138230B2 publication Critical patent/AU138230B2/en
Expired legal-status Critical Current

Links

AU9252/47A 1947-01-07 Improvements in or relating to apparatus for recording electric signals Expired AU138230B2 (en)

Publications (2)

Publication Number Publication Date
AU925247A AU925247A (en) 1947-01-30
AU138230B2 true AU138230B2 (en) 1947-01-30

Family

ID=

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