CA520966A - Cleaning devices - Google Patents

Cleaning devices

Info

Publication number
CA520966A
CA520966A CA520966A CA520966DA CA520966A CA 520966 A CA520966 A CA 520966A CA 520966 A CA520966 A CA 520966A CA 520966D A CA520966D A CA 520966DA CA 520966 A CA520966 A CA 520966A
Authority
CA
Canada
Prior art keywords
cleaning devices
cleaning
devices
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
CA520966A
Other languages
French (fr)
Inventor
Nathaniel B. Greenleaf
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 CA520966A publication Critical patent/CA520966A/en
Expired legal-status Critical Current

Links

CA520966A Cleaning devices Expired CA520966A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA520966T

Publications (1)

Publication Number Publication Date
CA520966A true CA520966A (en) 1956-01-24

Family

ID=35674189

Family Applications (1)

Application Number Title Priority Date Filing Date
CA520966A Expired CA520966A (en) Cleaning devices

Country Status (1)

Country Link
CA (1) CA520966A (en)

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