CA612174A - Rapping device - Google Patents

Rapping device

Info

Publication number
CA612174A
CA612174A CA612174A CA612174DA CA612174A CA 612174 A CA612174 A CA 612174A CA 612174 A CA612174 A CA 612174A CA 612174D A CA612174D A CA 612174DA CA 612174 A CA612174 A CA 612174A
Authority
CA
Canada
Prior art keywords
rapping device
rapping
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
CA612174A
Inventor
A. Wintermute Harry
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.)
Research Corp
Original Assignee
Research Corp
Publication date
Application granted granted Critical
Publication of CA612174A publication Critical patent/CA612174A/en
Expired legal-status Critical Current

Links

CA612174A Rapping device Expired CA612174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA612174T

Publications (1)

Publication Number Publication Date
CA612174A true CA612174A (en) 1961-01-10

Family

ID=35854495

Family Applications (1)

Application Number Title Priority Date Filing Date
CA612174A Expired CA612174A (en) Rapping device

Country Status (1)

Country Link
CA (1) CA612174A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172027A (en) * 1961-06-05 1965-03-02 Universal Oil Prod Co Sequentially energized solenoids reciprocating motor system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172027A (en) * 1961-06-05 1965-03-02 Universal Oil Prod Co Sequentially energized solenoids reciprocating motor system

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