FR760983A - Method and apparatus for cleaning the surfaces of molds used for the production of phonograph records - Google Patents

Method and apparatus for cleaning the surfaces of molds used for the production of phonograph records

Info

Publication number
FR760983A
FR760983A FR760983DA FR760983A FR 760983 A FR760983 A FR 760983A FR 760983D A FR760983D A FR 760983DA FR 760983 A FR760983 A FR 760983A
Authority
FR
France
Prior art keywords
cleaning
production
molds used
phonograph records
phonograph
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
Other languages
French (fr)
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 Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR760983A publication Critical patent/FR760983A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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)
FR760983D 1932-10-20 1933-09-20 Method and apparatus for cleaning the surfaces of molds used for the production of phonograph records Expired FR760983A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US760983XA 1932-10-20 1932-10-20

Publications (1)

Publication Number Publication Date
FR760983A true FR760983A (en) 1934-03-07

Family

ID=22129907

Family Applications (1)

Application Number Title Priority Date Filing Date
FR760983D Expired FR760983A (en) 1932-10-20 1933-09-20 Method and apparatus for cleaning the surfaces of molds used for the production of phonograph records

Country Status (1)

Country Link
FR (1) FR760983A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127377A (en) * 1977-02-14 1978-11-28 Marvin Glass & Associates Stamp design kit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127377A (en) * 1977-02-14 1978-11-28 Marvin Glass & Associates Stamp design kit

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