CA177974A - Trap door mechanism - Google Patents

Trap door mechanism

Info

Publication number
CA177974A
CA177974A CA000177974A CA177974DA CA177974A CA 177974 A CA177974 A CA 177974A CA 000177974 A CA000177974 A CA 000177974A CA 177974D A CA177974D A CA 177974DA CA 177974 A CA177974 A CA 177974A
Authority
CA
Canada
Prior art keywords
door mechanism
trap door
trap
door
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
CA000177974A
Other languages
French (fr)
Inventor
William H. Mussey
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA177974A publication Critical patent/CA177974A/en
Expired legal-status Critical Current

Links

CA000177974A 1917-03-30 1917-03-30 Trap door mechanism Expired CA177974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA177974T 1917-03-30

Publications (1)

Publication Number Publication Date
CA177974A true CA177974A (en) 1917-07-03

Family

ID=45297627

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000177974A Expired CA177974A (en) 1917-03-30 1917-03-30 Trap door mechanism

Country Status (1)

Country Link
CA (1) CA177974A (en)

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