FR357974A - Appareil de controle servant à constater la rentrée des pigeons - Google Patents

Appareil de controle servant à constater la rentrée des pigeons

Info

Publication number
FR357974A
FR357974A FR357974DA FR357974A FR 357974 A FR357974 A FR 357974A FR 357974D A FR357974D A FR 357974DA FR 357974 A FR357974 A FR 357974A
Authority
FR
France
Prior art keywords
pigeons
observe
return
control device
device used
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
Other languages
English (en)
Inventor
Alfred Plasschaert
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.)
ALFRED PLASSCHAERT
Original Assignee
ALFRED PLASSCHAERT
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 ALFRED PLASSCHAERT filed Critical ALFRED PLASSCHAERT
Application granted granted Critical
Publication of FR357974A publication Critical patent/FR357974A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
    • G07C1/22—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people in connection with sports or games
    • G07C1/26—Pigeon-timing or like equipment

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR357974D 1905-09-18 1905-09-23 Appareil de controle servant à constater la rentrée des pigeons Expired FR357974A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE357974X 1905-09-18

Publications (1)

Publication Number Publication Date
FR357974A true FR357974A (fr) 1906-01-22

Family

ID=1405834

Family Applications (1)

Application Number Title Priority Date Filing Date
FR357974D Expired FR357974A (fr) 1905-09-18 1905-09-23 Appareil de controle servant à constater la rentrée des pigeons

Country Status (1)

Country Link
FR (1) FR357974A (fr)

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