Method for producing single lens doubl-focal distance lens die

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Bibliographic Details
Main Author QINREN CHEN
Format Patent
LanguageEnglish
Published 19.01.2000
Edition7
Subjects
PERFORMING OPERATIONS
PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Bibliography:Application Number: CN1994103812