AU1454647A - An improved gramophone record composed ofa thermoplastic material containing amorphous carbon - Google Patents

An improved gramophone record composed ofa thermoplastic material containing amorphous carbon

Info

Publication number
AU1454647A
AU1454647A AU14546/47A AU1454647A AU1454647A AU 1454647 A AU1454647 A AU 1454647A AU 14546/47 A AU14546/47 A AU 14546/47A AU 1454647 A AU1454647 A AU 1454647A AU 1454647 A AU1454647 A AU 1454647A
Authority
AU
Australia
Prior art keywords
material containing
thermoplastic material
amorphous carbon
containing amorphous
gramophone record
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
AU14546/47A
Other versions
AU140882B2 (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.)
Electrical and Musical Industries Ltd
Original Assignee
Electrical and Musical Industries Ltd
Filing date
Publication date
Application filed by Electrical and Musical Industries Ltd filed Critical Electrical and Musical Industries Ltd
Application granted granted Critical
Publication of AU140882B2 publication Critical patent/AU140882B2/en
Publication of AU1454647A publication Critical patent/AU1454647A/en
Expired legal-status Critical Current

Links

AU14546/47A 1947-08-19 An improved gramophone record composed ofa thermoplastic material containing amorphous carbon Expired AU140882B2 (en)

Publications (2)

Publication Number Publication Date
AU140882B2 AU140882B2 (en) 1947-09-18
AU1454647A true AU1454647A (en) 1947-09-18

Family

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