DE274184C - - Google Patents

Info

Publication number
DE274184C
DE274184C DENDAT274184D DE274184DA DE274184C DE 274184 C DE274184 C DE 274184C DE NDAT274184 D DENDAT274184 D DE NDAT274184D DE 274184D A DE274184D A DE 274184DA DE 274184 C DE274184 C DE 274184C
Authority
DE
Germany
Prior art keywords
door
counterweight
clockwork
locked
triggered
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.)
Active
Application number
DENDAT274184D
Other languages
German (de)
English (en)
Publication of DE274184C publication Critical patent/DE274184C/de
Active legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K31/00—Housing birds
    • A01K31/02—Door appliances; Automatic door-openers

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Birds (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Housing For Livestock And Birds (AREA)
DENDAT274184D Active DE274184C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE274184C true DE274184C (enrdf_load_stackoverflow)

Family

ID=530575

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT274184D Active DE274184C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE274184C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048065B (de) * 1958-03-19 1958-12-31 Hans Stellwag Fahrbarer Futterschacht
US6371842B1 (en) 1993-06-17 2002-04-16 3M Innovative Properties Company Patterned abrading articles and methods of making and using same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048065B (de) * 1958-03-19 1958-12-31 Hans Stellwag Fahrbarer Futterschacht
US6371842B1 (en) 1993-06-17 2002-04-16 3M Innovative Properties Company Patterned abrading articles and methods of making and using same

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