CA1026151A - Couvercle d'ecoutille pour wagon-tremie - Google Patents

Couvercle d'ecoutille pour wagon-tremie

Info

Publication number
CA1026151A
CA1026151A CA271,433A CA271433A CA1026151A CA 1026151 A CA1026151 A CA 1026151A CA 271433 A CA271433 A CA 271433A CA 1026151 A CA1026151 A CA 1026151A
Authority
CA
Canada
Prior art keywords
cover assembly
hatch cover
hopper car
railroad hopper
car hatch
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
CA271,433A
Other languages
English (en)
Inventor
Robert G. Zeller
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.)
Boeing North American Inc
Original Assignee
Rockwell International Corp
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
Priority claimed from CA175,162A external-priority patent/CA1010301A/en
Application filed by Rockwell International Corp filed Critical Rockwell International Corp
Priority to CA271,433A priority Critical patent/CA1026151A/fr
Application granted granted Critical
Publication of CA1026151A publication Critical patent/CA1026151A/fr
Expired legal-status Critical Current

Links

CA271,433A 1972-08-03 1977-02-09 Couvercle d'ecoutille pour wagon-tremie Expired CA1026151A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA271,433A CA1026151A (fr) 1972-08-03 1977-02-09 Couvercle d'ecoutille pour wagon-tremie

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US27766772A 1972-08-03 1972-08-03
CA175,162A CA1010301A (en) 1972-08-03 1973-06-28 Railroad hopper car hatch cover assembly
CA271,433A CA1026151A (fr) 1972-08-03 1977-02-09 Couvercle d'ecoutille pour wagon-tremie

Publications (1)

Publication Number Publication Date
CA1026151A true CA1026151A (fr) 1978-02-14

Family

ID=27162889

Family Applications (1)

Application Number Title Priority Date Filing Date
CA271,433A Expired CA1026151A (fr) 1972-08-03 1977-02-09 Couvercle d'ecoutille pour wagon-tremie

Country Status (1)

Country Link
CA (1) CA1026151A (fr)

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