CA224326A - Fabrication d'anneaux en matieres plastiques - Google Patents

Fabrication d'anneaux en matieres plastiques

Info

Publication number
CA224326A
CA224326A CA224326A CA224326DA CA224326A CA 224326 A CA224326 A CA 224326A CA 224326 A CA224326 A CA 224326A CA 224326D A CA224326D A CA 224326DA CA 224326 A CA224326 A CA 224326A
Authority
CA
Canada
Prior art keywords
plastic material
annular bodies
making annular
making
bodies
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
CA224326A
Other languages
English (en)
Inventor
Harvey Pearson John
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.)
ONEPIECE BIFOCAL LENS Co
Original Assignee
ONEPIECE BIFOCAL LENS Co
Publication date
Application granted granted Critical
Publication of CA224326A publication Critical patent/CA224326A/fr
Expired legal-status Critical Current

Links

CA224326A Fabrication d'anneaux en matieres plastiques Expired CA224326A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA224326T

Publications (1)

Publication Number Publication Date
CA224326A true CA224326A (fr) 1922-10-03

Family

ID=35119929

Family Applications (1)

Application Number Title Priority Date Filing Date
CA224326A Expired CA224326A (fr) Fabrication d'anneaux en matieres plastiques

Country Status (1)

Country Link
CA (1) CA224326A (fr)

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