Patent information:
Patent: | Utility 1,381,695 |
Patented: | June 14, 1921 |
Applied: | December 20, 1920 |
Title: | Porcelain Tube Heading Machine |
Description: | Machine for making wall tubes |
Category: | Wall Tube |
Assigned to: | |
Patentee Information:
Class and subclass information:
Class: | 425 | PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS |
Subclass: | 392 | PREFORM RESHAPING OR RESIZING MEANS: OR VULCANIZING MEANS INCLUDING A CONFORMING PREFORM SUPPORT; Rod or tubular preform; |
Class: | 425 | PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS |
Subclass: | 441 | SHAPING SURFACE INCLUDING MEANS TO RELEASE OR REMOVE PRODUCT FROM SHAPING SURFACE; By movable mold sections; |
Known specimens:
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Drawings:
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