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.)
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.)
COLUMBIA GRAPHOPHONE CO Ltd
Original Assignee
COLUMBIA GRAPHOPHONE CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by COLUMBIA GRAPHOPHONE CO LtdfiledCriticalCOLUMBIA GRAPHOPHONE CO Ltd
Application grantedgrantedCritical
Publication of FR565563ApublicationCriticalpatent/FR565563A/fr
B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
B—PERFORMING OPERATIONS; TRANSPORTING
B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
B29L2017/00—Carriers for sound or information
B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
B29L2017/003—Records or discs
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR565563D1923-04-271923-04-27Procédé et appareil pour la fabrication de disques de phonographes
ExpiredFR565563A
(fr)