PL74214B1 - - Google Patents

Info

Publication number
PL74214B1
PL74214B1 PL15131371A PL15131371A PL74214B1 PL 74214 B1 PL74214 B1 PL 74214B1 PL 15131371 A PL15131371 A PL 15131371A PL 15131371 A PL15131371 A PL 15131371A PL 74214 B1 PL74214 B1 PL 74214B1
Authority
PL
Poland
Application number
PL15131371A
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 filed Critical
Priority to PL15131371A priority Critical patent/PL74214B1/xx
Priority to FR7238467A priority patent/FR2159063A5/fr
Priority to GB4990972A priority patent/GB1358133A/en
Publication of PL74214B1 publication Critical patent/PL74214B1/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
    • B63B19/12—Hatches; Hatchways
    • B63B19/14—Hatch covers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
PL15131371A 1971-10-30 1971-10-30 PL74214B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL15131371A PL74214B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1971-10-30 1971-10-30
FR7238467A FR2159063A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1971-10-30 1972-10-30
GB4990972A GB1358133A (en) 1971-10-30 1972-10-30 Hatch cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL15131371A PL74214B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1971-10-30 1971-10-30

Publications (1)

Publication Number Publication Date
PL74214B1 true PL74214B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-10-31

Family

ID=19956084

Family Applications (1)

Application Number Title Priority Date Filing Date
PL15131371A PL74214B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1971-10-30 1971-10-30

Country Status (3)

Country Link
FR (1) FR2159063A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1358133A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
PL (1) PL74214B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317092A (en) * 1980-06-30 1982-02-23 Hewlett-Packard Company Recursive low pass digital filter

Also Published As

Publication number Publication date
FR2159063A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-06-15
GB1358133A (en) 1974-06-26

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