FR1320002A - Screening device - Google Patents

Screening device

Info

Publication number
FR1320002A
FR1320002A FR796103A FR796103A FR1320002A FR 1320002 A FR1320002 A FR 1320002A FR 796103 A FR796103 A FR 796103A FR 796103 A FR796103 A FR 796103A FR 1320002 A FR1320002 A FR 1320002A
Authority
FR
France
Prior art keywords
screening device
screening
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
FR796103A
Other languages
French (fr)
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.)
General Mills Inc
Original Assignee
General Mills Inc
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 General Mills Inc filed Critical General Mills Inc
Priority to FR796103A priority Critical patent/FR1320002A/en
Application granted granted Critical
Publication of FR1320002A publication Critical patent/FR1320002A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
    • G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier
    • G08B13/184—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier using radiation reflectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR796103A 1959-05-29 1959-05-29 Screening device Expired FR1320002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR796103A FR1320002A (en) 1959-05-29 1959-05-29 Screening device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR796103A FR1320002A (en) 1959-05-29 1959-05-29 Screening device

Publications (1)

Publication Number Publication Date
FR1320002A true FR1320002A (en) 1963-03-08

Family

ID=8715410

Family Applications (1)

Application Number Title Priority Date Filing Date
FR796103A Expired FR1320002A (en) 1959-05-29 1959-05-29 Screening device

Country Status (1)

Country Link
FR (1) FR1320002A (en)

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