CA198917A - Dispositif de sceau a vide - Google Patents

Dispositif de sceau a vide

Info

Publication number
CA198917A
CA198917A CA198917A CA198917DA CA198917A CA 198917 A CA198917 A CA 198917A CA 198917 A CA198917 A CA 198917A CA 198917D A CA198917D A CA 198917DA CA 198917 A CA198917 A CA 198917A
Authority
CA
Canada
Prior art keywords
sealing device
vacuum sealing
vacuum
sealing
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
CA198917A
Other languages
English (en)
Inventor
Duffy Henry
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA198917A publication Critical patent/CA198917A/fr
Expired legal-status Critical Current

Links

CA198917A Dispositif de sceau a vide Expired CA198917A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA198917T

Publications (1)

Publication Number Publication Date
CA198917A true CA198917A (fr) 1920-04-06

Family

ID=35073354

Family Applications (1)

Application Number Title Priority Date Filing Date
CA198917A Expired CA198917A (fr) Dispositif de sceau a vide

Country Status (1)

Country Link
CA (1) CA198917A (fr)

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