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Publication of GB191207974ApublicationCriticalpatent/GB191207974A/en
B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
B43M—BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR
B43M1/00—Fixing seals on documents
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Coating Apparatus
(AREA)
Package Closures
(AREA)
Adhesives Or Adhesive Processes
(AREA)
GB191207974D1911-06-301912-04-02Improvements in and relating to Apparatus for Melting and Supplying Material for Purposes of Sealing.
ExpiredGB191207974A
(en)
Apparatus for producing semiconductor single crystal an apparatus for producing semiconductor single crystal, which comprises a crucible, a primary heater, a pulling mechanism, and a material supply mechanism.