CA404737A - Chapeau a bulles - Google Patents

Chapeau a bulles

Info

Publication number
CA404737A
CA404737A CA404737A CA404737DA CA404737A CA 404737 A CA404737 A CA 404737A CA 404737 A CA404737 A CA 404737A CA 404737D A CA404737D A CA 404737DA CA 404737 A CA404737 A CA 404737A
Authority
CA
Canada
Prior art keywords
bubble cap
bubble
cap
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
CA404737A
Other languages
English (en)
Inventor
H. Rupp Walter
W. Moore Thomas
L. Mateer George
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.)
Standard Oil Development Co
Original Assignee
Standard Oil Development Co
Publication date
Application granted granted Critical
Publication of CA404737A publication Critical patent/CA404737A/fr
Expired legal-status Critical Current

Links

CA404737A Chapeau a bulles Expired CA404737A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA404737T

Publications (1)

Publication Number Publication Date
CA404737A true CA404737A (fr) 1942-05-12

Family

ID=35416035

Family Applications (1)

Application Number Title Priority Date Filing Date
CA404737A Expired CA404737A (fr) Chapeau a bulles

Country Status (1)

Country Link
CA (1) CA404737A (fr)

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